Jessie Yeung , CNN Written byConstruction has begun on a soaring tower that will become Japan's tallest skyscraper.
The ambitious Toranomon-Azabudai project, in central Tokyo, aims to be "a city-within-a-city," according to the scheme's developers.
Of its three towers, the tallest will reach 330 meters (1,083 feet) in height, far surpassing the Abeno Harukas skyscraper in Osaka, currently Japan's tallest building at 300 meters (984 feet).
Japan's new tallest building will still be dwarfed by Taiwan's 508-meter (1,667-foot) Taipei 101 and the 541-meter (1,776-foot) One World Trade Center in New York.
The Burj Khalifa, the world's tallest building, measures 828 meters (2,717 feet) -- more than twice the height of the planned Toranomon-Azabudai tower.