Taipei 101 vs Inco Superstack

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The Taipei 101 (Chinese: ??101; pinyin: Táib?i y? líng y?; stylized as TAIPEI 101), formerly called the Taipei World Financial Center (????????), is a supertall skyscraper designed by C.Y. Lee and C.P. Wang in Xinyi, Taipei, Taiwan. This building was officially classified as the world's tallest from its opening in 2004 before the 2010 completion of the Burj Khalifa in Dubai, UAE. Its elevators, capable of traveling 60.6 km/h (37.7 mph) and used to transport passengers in the 5th to 89th floor in 37 seconds, set new records upon completion. In 2011 Taipei 101 received a Platinum rating under the LEED certification system to become the tallest and largest green building in the world. The arrangement regularly appears as an icon of Taipei in international media, and the Taipei 101 fireworks displays are a regular feature of New Year's Eve broadcasts.

Taipei 101's postmodernist architectural design evokes traditional Asian aesthetics in a contemporary structure employing industrial substances. Its design incorporates numerous features that allow the construction to withstand the Pacific Ring of Fire's earthquakes as well as the region's tropical storms. The tower houses restaurants and offices as well as both indoor and outdoor observatories. The tower is adjoined with a multilevel shopping mall that has the world's largest ruyi symbol as an exterior feature. Taipei 101 is possessed by Taipei Financial Center Corporation. The skyscraper started on 31 December 2004 to celebrate New Year's Eve.

Source: Wikipedia

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The Inco Superstack in Sudbury, Ontario, with a height of 381 metres (1,250 ft), is the tallest chimney in Canada and the Western hemisphere, and the 2nd tallest freestanding chimney in the world after the GRES-2 Power Station in Kazakhstan. It's also the second tallest freestanding structure of any kind in Canada, behind the CN Tower but forward of First Canadian Place. It's the 40th tallest freestanding structure in the world. The Superstack is situated on top of the biggest nickel smelting operation in the world at Vale's Copper Cliff processing centre in the city of Greater Sudbury. In 2018, Vale declared that the stack will be decommissioned and dismantled beginning in 2020. On July 28, 2020, Vale declared that the stack had been officially taken out of service, but would remain operational in standby mode for two more months as a backup in case of a malfunction in the new system, after which the dismantling of this Superstack will begin. In addition to further reducing sulfur dioxide emissions by 85 percent, the decommissioning of the pile is expected to cut the complex's natural gas consumption in half.

Source: Wikipedia