Japan's Sky Tree, is 2,080 feet tall, and its the second tallest building on the planet next to the Burj Khalifa. Located in Sumida, it cost $806 million to complete, which included a two month delay on account of the devastating earthquake and tsunami. Half a million aided in its contruction which concluded on Wednesday last week.

The tower is intended to improve digital signal coverage as Japan quits all analog broadcasting in July last year. The tower will also have office space, broadcasting facilities, and will be home to seven Japanese broadcasters spearheded by NHK.

These decks will rise from the tower's 1,312-foot-wide base, at heights of 350 and 450 meters, respectively. They'll open to the public on May 22, 2012. [Physorg - Geekosystem - Sky Tree Wiki - Tokyo Sky Tree]