Tokyo Skytree Tembo Deck is an observation deck 350 meters up Tokyo Skytree, looking down over the city. It offers a 360-degree view of the Kanto Plain and, in the distance, Mount Fuji, and at night you can take in the Tokyo skyline. A glass floor lets you look straight down to the ground, and going all the way around takes about 30 minutes. Crowds make the lines long, and admission is on the expensive side.