Located on Port Jackson in Australia, which building, with white sail-shaped shells as its roof structure, is one of the most-photographed buildings in the world?



Sydney Opera House, opera house located on Port Jackson (Sydney Harbour), New South Wales, Australia. Its unique use of a series of gleaming white sail-shaped shells as its roof structure makes it one of the most-photographed buildings in the world.



The building and its surrounds occupy the whole of Bennelong Point on Sydney Harbour, between Sydney Cove and Farm Cove, adjacent to the Sydney central business district and the Royal Botanic Gardens, and close by the Sydney Harbour Bridge.



The building comprises multiple performance venues, which together host well over 1,500 performances annually, attended by more than 1.2 million people. Performances are presented by numerous performing artists, including three resident companies: Opera Australia, the Sydney Theatre Company and the Sydney Symphony Orchestra. As one of the most popular visitor attractions in Australia, the site is visited by more than eight million people annually, and approximately 350,000 visitors take a guided tour of the building each year. The building is managed by the Sydney Opera House Trust, an agency of the New South Wales State Government.



On 28 June 2007, the Sydney Opera House became a UNESCO World Heritage Site, having been listed on the (now defunct) Register of the National Estate since 1980, the National Trust of Australia register since 1983, the City of Sydney Heritage Inventory since 2000, the New South Wales State Heritage Register since 2003, and the Australian National Heritage List since 2005. Furthermore, the Opera House was a finalist in the New7Wonders of the World campaign list.



 



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Where is the Acropolis of Athens located?



The Acropolis of Athens is an ancient citadel located on a rocky outcrop above the city of Athens and contains the remains of several ancient buildings of great architectural and historic significance, the most famous being the Parthenon. The word acropolis is from the Greek words ????? (akron, "highest point, extremity") and ????? (polis, "city").Although the term acropolis is generic and there are many other acropoleis in Greece, the significance of the Acropolis of Athens is such that it is commonly known as "The Acropolis" without qualification. During ancient times it was known also more properly as Cecropia, after the legendary serpent-man, Cecrops, the supposed first Athenian king.



The word acropolis literally means in Greek "upper city," and though associated primarily with the Greek cities Athens, Argos (with Larissa), Thebes (with Cadmea), and Corinth (with its Acrocorinth), may be applied generically to all such citadels, including Rome, Carthage, Jerusalem, Celtic Bratislava, many in Asia Minor, or even Castle Rock in Edinburgh. An example in Ireland is the Rock of Cashel. Acropolis is also the term used by archaeologists and historians for the urban Castro culture settlements located in Northwestern Iberian hilltops.



The most famous example is the Acropolis of Athens, which, by reason of its historical associations and the several famous buildings erected upon it (most notably the Parthenon), is known without qualification as the Acropolis. The Acropolis of Athens achieved its form in the fifth century BC and is currently an archeological site. Although originating in the mainland of Greece, use of the acropolis model quickly spread to Greek colonies such as the Dorian Lato on Crete during the Archaic Period.



 



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What is the more common name of the Flavian Amphitheatre?



Colosseum, also called Flavian Amphitheatre, giant amphitheatre built in Rome under the Flavian emperors. Construction of the Colosseum was begun sometime between 70 and 72 CE during the reign of Vespasian. It is located just east of the Palatine Hill, on the grounds of what was Nero’s Golden House. 



The structure was officially dedicated in 80 CE by Titus in a ceremony that included 100 days of games. Later, in 82 CE, Domitian completed the work by adding the uppermost story. Unlike earlier amphitheatres, which were nearly all dug into convenient hillsides for extra support, the Colosseum is a freestanding structure of stone and concrete, using a complex system of barrel vaults and groin vaults and measuring 620 by 513 feet (189 by 156 metres) overall. Three of the arena’s stories are encircled by arcades framed on the exterior by engaged columns in the Doric, Ionic, and Corinthian orders; the structure’s rising arrangement of columns became the basis of the Renaissance codification known as the assemblage of orders. The main structural framework and facade are travertine, the secondary walls are volcanic tufa, and the inner bowl and the arcade vaults are concrete.



In medieval times, the Colosseum was used as a church, then as a fortress by two prominent Roman families, the Frangipane and the Annibaldi. The Colosseum was damaged by lightning and earthquakes and, even more severely, by vandalism and pollution. All the marble seats and decorative materials disappeared, as the site was treated as little more than a quarry for more than 1,000 years. Preservation of the Colosseum began in earnest in the 19th century, with notable efforts led by Pius VIII, and a restoration project was undertaken in the 1990s. It has long been one of Rome’s major tourist attractions, receiving close to seven million visitors annually. Changing exhibitions relating to the culture of ancient Rome are regularly mounted.



 



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What is the name of 300-mt wrought-iron lattice tower and Parisian landmark conceived as part of preparations for the World’s Fair of 1889?

    

The Eiffel Tower, La Tour Eiffel in French, was the main exhibit of the Paris Exposition — or World's Fair — of 1889. It was constructed to commemorate the centennial of the French Revolution and to demonstrate France's industrial prowess to the world. 



The Eiffel company's design won, and construction of the wrought-iron tower began in July 1887. But not everyone in Paris was thrilled with the idea of a giant metal monument looming over the city. 



Even to contemporary eyes, the Eiffel Tower is unique. But in the late 19th century, nothing had been seen like it. "Modern architecture was emerging slightly in Paris before the Eiffel Tower. But it was doing it in a very shy way," said Gudek Snajdar. Iron, which was newly popular as a building material because of the Industrial Revolution, became a cornerstone of modern architecture. But in 1887, it had only appeared internally, as support structures, or in unimportant buildings like hothouses, factories and bridges.



When construction of the tower began on the Champs de Mars, a group of 300 artists, sculptors, writers and architects sent a petition to the commissioner of the Paris Exposition, pleading him to halt construction of the "ridiculous tower" that would dominate Paris like a "gigantic black smokestack."



But the protests of Paris' artistic community fell on deaf ears. Construction of the tower was completed in just over two years, on March 31, 1889. 



 



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Where is the famous St. Peter’s Basilica located?



The Papal Basilica of Saint Peter in the Vatican (Italian: Basilica Papale di San Pietro in Vaticano), or simply Saint Peter's Basilica (Latin: Basilica Sancti Petri), is a church built in the Renaissance style located in Vatican City, the papal enclave that is within the city of Rome.



The construction of St. Peter’s Basilica took over a century in the making! The planning of the Basilica started when Pope Julius II commissioned a competition to design the grandest building in Christendom. The winner of the competition was Donato Bramante, and the foundation stone was laid in 1506. A series of deaths and personnel changes led to the change of architects from Bramante to Raphael to eventually Michelangelo in 1547.



The final St. Peter's Basilica dome and the architecture are accredited to the brilliance of Michelangelo who based it on the designs of Bramante. The Basilica is built in the traditional Renaissance architecture and has been an inspiration for church buildings across the world. The iconic facade was designed by Maderno and remains an unforgettable memory in millions of pilgrims who visit it each year to see the Pope.



 



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