What is a superstructure? Definition Any building exceeding 1000 ft (300 m) in height – essentially a skyscraper. Almost every current superstructure is among the top 10 in a certain category of height – freestanding, to the top of the antenna, to the top of the building itself and including the underground floors. Requirements Almost all superstructures are built in flat areas and require a solid base. Most of them are not in regions prone to large earthquakes, although there are exceptions (Tokyo, Western Coast of the US, Taiwan) Advantages They save a lot of much needed land in cities such as Moscow or New York. It is undoubtedly prestigious to have a skyscraper in your city. Disadvantages Problems with fire safety and quick evacuation Possible terrorist targets Have to withstand high winds Flight safety regulations Extremely expensive to build The tallest freestanding structure CN Tower, Toronto, Canada 553.53 meters to the top of the antenna Tallest structure under construction Madinat Al-Hareer (City of Silk), Kuwait City, Kuwait 1001 meters to the top Will cost almost $90 billion Should be complete by 2030 Tallest skyscraper Taipei 101, Taipei, Taiwan 508 meters Especially designed to withstand large earthquakes Completed in 2004 Tallest unfinished building Ryugyong Hotel, Pyongyang, North Korea 330 m (as high as the Eiffel Tower) Tallest hotel in the world Construction started in 1987 and stopped in 1992 due to lack of funding Tallest building destroyed World Trade Center 1 Completed in 1973, destroyed in 2001 526 meters Tallest building in New York for 28 years Thanks for enduring the suffering!