Rama IX Super Tower
Thailand
The 1019th tallest building in the world
The Grand Rama 9 Tower (formerly known as Rama IX Super Tower) was a proposed skyscraper in Bangkok, Thailand but has been cancelled. It was planned to be 615 m (2, 018 ft) tall. When completed, it would have been the tallest building in Thailand, a record which is now held by Magnolias Waterfront Residences, which is 316 m (1, 037 ft) tall.
Building data from Wikidata (CC0); heights normalised. Summary from Wikipedia (CC BY-SA).