City of Capitals vs Inco Superstack

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The City of Capitals (Russian: ????? ??????, tr.

Gorod Stolits) is a mixed-use complex composed of two skyscrapers and an office building located on storyline 9 at the Moscow International Business Center in Moscow, Russia with a complete area of 288,680 square metres (3,107,300 sq ft). The two skyscrapers are named after both historical capitals of Russia: Moscow and Saint Petersburg. Construction of the complex began in 2005, with the office building completed in 2008 and both skyscrapers finished in 2009.



Moscow Tower is the taller of the two skyscrapers, with a height of 301.6 metres (990 ft) and 73 stories, exceeding the Naberezhnaya Tower as the tallest building in Russia and Europe in 2008, until it was surpassed by The Shard at London, United Kingdom at 2012. St. Petersburg Tower has a height of 256.9 metres (843 ft) and 65 tales while the office building serves as a stylobate having a height of 76 metres (249 ft) with 18 floors.

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