Shinjuku Sumitomo Building

Shinjuku Sumitomo Building is like a triangle chimney.
Since it has a ceiling, it's not a chimney but you can see the inside of the building through windows.

Of course, you can see the outside of the building, too.
There's a free observatory on 51 floor.

Location is good to see Tokyo Metropolitan Government Building closely.

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<The Nearest Station>

JR Shinjuku station on Yamanote Line / Chuo Line / Saikyo Line
Shinjuku station on Keio Line / Odakyu Line
Shinjuku station on Shinjuku Line / Oedo Line (S01/E27/Toei Subway)

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