The chapel of Notre Dame du Haut in Ronchamp

Informally known as "Ronchamp", the chapel of Notre Dame du Haut in Ronchamp (French: Chapelle Notre-Dame-du-Haut de Ronchamp), completed in 1955, is one of the finest examples of the architecture of Franco-Swiss architect Le Corbusier and one of the most important examples of twentieth-century religious architecture.

Notre Dame du Haut was thought of as a more extreme design of Le Corbusier’s late style. The chapel is a simple design with two entrances, a main altar, and three chapels beneath towers. Although the building is small, it is powerful and complex. The chapel is the latest of chapels at the site. The previous chapel was completely destroyed there during World War II. The previous building was a 4th century Christian chapel. But, at the time the new building was being constructed, Corbusier wasn’t exactly interested in “Machine Age” architecture. He felt his style was more primitive and sculptural, so he decided to build something more interesting.

The structure is made mostly of concrete and is comparatively small, enclosed by thick walls, with the upturned roof supported on columns embedded within the walls, like a sail billowing in the windy currents on the hill top. The Christian Church sees itself as the ship of God, bringing safety and salvation to followers. In the interior, the spaces left between the walls and roof and filled with clerestory windows, as well as the asymmetric light from the wall openings, serve to further reinforce the sacred nature of the space and reinforce the relationship of the building with its surroundings. The lighting in the interior is soft and indirect, from the clerestory windows and reflecting off the whitewashed walls of the chapels with projecting towers.

The structure is built mostly of concrete and stone, which was a remnant of the original chapel built on the hilltop site destroyed during World War II. Some have described Ronchamp as the first Post-Modern building. It was constructed in the early 1950s.

The main part of the structure consists of two concrete membranes separated by a space of 6'11", forming a shell which constitutes the roof of the building. This roof, both insulating and watertight, is supported by short struts, which form part of a vertical surface of concrete covered with "gunite" and which, in addition, brace the walls of old Vosges stone provided by the former chapel which was destroyed by the bombings. These walls which are without buttresses follow, in plan, the curvilinear forms calculated to provide stability to this rough masonry. A space of several centimeters between the shell of the roof and the vertical envelope of the walls furnishes a significant entry for daylight. The floor of the chapel follows the natural slope of the hill down towards the altar. Certain parts, in particular those upon which the interior and exterior altars rest, are of beautiful white stone from Bourgogne, as are the altars themselves. The towers are constructed of stone masonry and are capped by cement domes. The vertical elements of the chapel are surfaced with mortar sprayed on with a cement gun and then white-washed - both on the interior and exterior. The concrete shell of the roof is left rough, just as it comes from the formwork. Watertightness is effected by a built-up roofing with an exterior cladding of aluminium. The interior walls are white; the ceiling grey; the bench of African wood created by Savina; the communion bench is of cast iron made by the foundries of the Lure.

Jubilee Church

The Jubilee Church, formally known as Dio Padre Misericordioso, is a church and community center in Tor Tre Teste in Rome. According to Richard Meier, its architect, it is "the crown jewel of the Vicariato di Roma's (Archdiocese of Rome) Millennium project" (p. 354). The Church serves eight thousand residents of the Tor Tre Teste area and was meant to socially "revive" Tor Tre Teste. It is paid homage to in the video game Hitman: Blood Money, with a very similar church as the setting of the game's final mission.

The Church's site is divided into four main parts: first, the precinct, including the church and community center; second, the northeast terrace; third, the northwest recreation court; fourth, the west parking area.

The south side of the church features three large curved walls of pre-cast concrete. (The walls form segments of spheres.) Meier claims to have designed the church to minimize thermal peak loads inside. The large thermal mass of the concrete walls control internal heat gain; the result is less temperature variation, and supposedly more efficient use of energy. The walls also contain titanium dioxide to keep the appearance of the church white. Enrico Borgarello, the director of research and development for Italcementi, the company that designed the cement, claims that the cement destroys air pollution.

According to Borgarello

"When the titanium dioxide absorbs ultraviolet light, it becomes powerfully reactive, breaking down pollutants that come in contact with the concrete. It is particularly good at attacking the noxious gases that come out of a cars exhaust pipe."

Notre Dame de Paris

Notre Dame de Paris (French for Our Lady of Paris), also known as Notre Dame Cathedral, is a Gothic, Catholic cathedral on the eastern half of the Île de la Cité in the fourth arrondissement of Paris, France. It is the cathedral of the Catholic Archdiocese of Paris: that is, it is the church that contains the cathedra (official chair), of the Archbishop of Paris, currently André Vingt-Trois. The cathedral treasury houses a reliquary with the purported Crown of Thorns.

Notre Dame de Paris is widely considered one of the finest examples of French Gothic architecture in France and in Europe, and the naturalism of its sculptures and stained glass are in contrast with earlier Romanesque architecture. The first period of construction from 1163 into the 1240's coincided with the musical experiments of the Notre Dame school.

Notre Dame de Paris was among the first buildings in the world to use the flying buttress (arched exterior supports). The building was not originally designed to include the flying buttresses around the choir and nave. After the construction began and the thinner walls (popularized in the Gothic style) grew ever higher, stress fractures began to occur as the walls pushed outward. In response, the cathedral's architects built supports around the outside walls, and later additions continued the pattern. The cathedral was essentially complete by 1345.

The cathedral suffered desecration during the radical phase of the French Revolution in the 1790s, when much of its religious imagery was damaged or destroyed. An extensive restoration supervised by Eugène Viollet-le-Duc removed remaining decoration, returning the cathedral to an 'original' gothic state.

Jean de Jandun recognized the cathedral as one of Paris's three most important buildings in his 1323 "Treatise on the Praises of Paris":

that most terrible church of the most glorious Virgin Mary, mother of God, deservedly shines out, like the sun among stars. And although some speakers, by their own free judgment, because [they are] able to see only a few things easily, may say that some other is more beautiful, I believe however, respectfully, that, if they attend more diligently to the whole and the parts, they will quickly retract this opinion. Where indeed, I ask, would they find two towers of such magnificence and perfection, so high, so large, so strong, clothed round about with such a multiple variety of ornaments? Where, I ask, would they find such a multipartite arrangement of so many lateral vaults, above and below? Where, I ask, would they find such light-filled amenities as the many surrounding chapels? Furthermore, let them tell me in what church I may see such a large cross, of which one arm separates the choir from the nave. Finally, I would willingly learn where [there are] two such circles, situated opposite each other in a straight line, which on account of their appearance are given the name of the fourth vowel [O] ; among which smaller orbs and circlets, with wondrous artifice, so that some arranged circularly, others angularly, surround windows ruddy with precious colors and beautiful with the most subtle figures of the pictures. In fact I believe that this church offers the carefully discerning such cause for admiration that its inspection can scarcely sate the soul."

The Hallgrímskirkja

The Hallgrímskirkja (Icelandic: "church of Hallgrímur") is a Lutheran (Church of Iceland) parish church in Reykjavík, Iceland. At 74.5 metres (244 ft), it is the largest church in Iceland and the sixth tallest architectural structure in Iceland after Longwave radio mast Hellissandur, the radio masts of US Navy at Grindavík, Eiðar longwave transmitter and Smáratorg tower. The church is named after the Icelandic poet and clergyman Hallgrímur Pétursson (1614 to 1674), author of the Passion Hymns.

State Architect Guðjón Samúelsson's design of the church was commissioned in 1937. He is said to have designed it to resemble the basalt lava flows of Iceland's landscape. It took 38 years to build the church. Construction work began in 1945 and ended in 1986, the landmark tower being completed long before the church's actual completion. The crypt beneath the choir was consecrated in 1948, the steeple and wings were completed in 1974. The nave was consecrated in 1986. Situated in the centre of Reykjavík, it is one of the city's best-known landmarks and is visible throughout the city. It is similar in style to the expressionist architecture of Grundtvig's Church of Copenhagen, Denmark, completed in 1926.

The church houses a large pipe organ by the German organ builder Johannes Klais of Bonn. It has mechanical action, four manuals and pedal, 102 ranks, 72 stops and 5275 pipes. It is 15 metres tall and weighs 25 tons. Its construction was finished in December 1992. It has been recorded by Christopher Herrick in his Organ Fireworks VII CD.

The church is also used as an observation tower. An observer can take a lift up to the viewing deck and view Reykjavík and the surrounding mountains. The statue of explorer Leif Eriksson (1929-32) by Alexander Stirling Calder in front of the church predates its construction. It was a gift from the United States in honor of the 1930 Alþingi Millennial Festival, commemorating the 1000th anniversary of Iceland's parliament at Þingvellir in 930 AD.

In 2008, the church underwent a major restoration of the main tower, and was covered in scaffolding. In late 2009, restoration was completed and the scaffolding was removed.

The Papal Basilica of Saint Peter

The Papal Basilica of Saint Peter (Latin: Basilica Sancti Petri), officially known in Italian as the Basilica Papale di San Pietro in Vaticano and commonly known as St. Peter's Basilica, is a Late Renaissance church located within the Vatican City. St. Peter's Basilica has the largest interior of any Christian church in the world. It is regarded as one of the holiest Catholic sites. It has been described as "holding a unique position in the Christian world" and as "the greatest of all churches of Christendom".

In Catholic tradition, the basilica is the burial site of its namesake Saint Peter, who was one of the twelve apostles of Jesus and, according to tradition, first Bishop of Rome and therefore first in the line of the papal succession. Tradition and some historical evidence hold that Saint Peter's tomb is directly below the altar of the basilica. For this reason, many Popes have been interred at St Peter's since the Early Christian period. There has been a church on this site since the 4th century. Construction of the present basilica, over the old Constantinian basilica, began on April 18, 1506 and was completed on November 18, 1626.

St. Peter's is famous as a place of pilgrimage, for its liturgical functions and for its historical associations. It is associated with the papacy, with the Counter-reformation and with numerous artists, most significantly Michelangelo. As a work of architecture, it is regarded as the greatest building of its age. Contrary to popular misconception, Saint Peter's is not a cathedral, as it is not the seat of a bishop. It is properly termed a papal basilica. The Basilica of St. John Lateran is the cathedral church of Rome.

Hagia Sophia - Istanbul, Turkey

Hagia Sophia (from the Greek: Ἁγία Σοφία, "Holy Wisdom"; Latin: Sancta Sophia or Sancta Sapientia; Turkish: Aya Sofya) is a former Orthodox patriarchal basilica, later a mosque, and now a museum in Istanbul, Turkey. From the date of its dedication in 360 until 1453, it served as the cathedral of Constantinople, except between 1204 and 1261, when it was converted to a Roman Catholic cathedral under the Latin Patriarch of Constantinople of the Western Crusader established Latin Empire. The building was a mosque from 29 May 1453 until 1931, when it was secularized. It was opened as a museum on 1 February 1935.

The Church was dedicated to the Logos, the second person of the Holy Trinity, its dedication feast taking place on December 25, the anniversary of the incarnation of the Logos in Christ. Although it is sometimes referred to as Sancta Sophia (as though it were named after Saint Sophia), sophia is the phonetic spelling in Latin of the Greek word for wisdom - the full name in Greek being Ναός τῆς Ἁγίας τοῦ Θεοῦ Σοφίας, "Church of the Holy Wisdom of God"

Famous in particular for its massive dome, it is considered the epitome of Byzantine architecture and is said to have "changed the history of architecture." It was the largest cathedral in the world for nearly a thousand years, until Seville Cathedral was completed in 1520. The current building was originally constructed as a church between 532 and 537 on the orders of the Byzantine Emperor Justinian and was the third Church of the Holy Wisdom to occupy the site, the previous two having both been destroyed by rioters. It was designed by the Greek scientists Isidore of Miletus, a physicist, and Anthemius of Tralles, a mathematician.

The church contained a large collection of holy relics and featured, among other things, a 49 foot (15 m) silver iconostasis. It was the seat of the Patriarch of Constantinople and the religious focal point of the Eastern Orthodox Church for nearly one thousand years. It is the church in which Cardinal Humbert in 1054 excommunicated Michael I Cerularius - which is commonly considered the start of the Great Schism.

In 1453, Constantinople was conquered by the Ottoman Turks under Sultan Mehmed II, who subsequently ordered the building converted into a mosque. The bells, altar, iconostasis, and sacrificial vessels were removed and many of the mosaics were plastered over. Islamic features — such as the mihrab, minbar, and four minarets — were added while in the possession of the Ottomans. It remained a mosque until 1931 when it was closed to the public for four years. It was re-opened in 1935 as a museum by the Republic of Turkey.

For almost 500 years the principal mosque of Istanbul, Hagia Sophia served as a model for many other Ottoman mosques, such as the Sultan Ahmed Mosque (Blue Mosque of Istanbul), the Şehzade Mosque, the Süleymaniye Mosque, the Rüstem Pasha Mosque and the Kılıç Ali Paşa Mosque.