311 South Wacker Drive

311 South Wacker Drive in Chicago, USA, is a post-modern 65-story skyscraper completed in 1990. At 961 feet (293 m) tall, it is the seventh tallest building in Chicago and the 21st tallest in the United States. It was once the tallest reinforced concrete building in the world. Until 2015, 311 South Wacker was also the tallest building in the world known only by its street address, when it was replaced by New York's 432 Park Avenue.

311 South Wacker Drive

311 South Wacker Drive in Chicago, USA, is a post-modern 65-story skyscraper completed in 1990. At 961 feet (293 m) tall, it is the seventh tallest building in Chicago and the 21st tallest in the United States. It was once the tallest reinforced concrete building in the world. Until 2015, 311 South Wacker was also the tallest building in the world known only by its street address, when it was replaced by New York's 432 Park Avenue.