So why should a tourist like you include this in your itinerary? Because it's not just a run-of-the-mill government building!
The 243 meter-tall building has two towers, and each houses an observatory at 202 meters. These observatory decks provides an over-arching view of the city, where you can spot famous landmarks like the Tokyo Dome, Tokyo Tower, Mount Fuji, Meiji Shrine and many others.
The North observatory deck is open at night, which makes it a popular spot to catch night views of the sprawling city. It is famously known as the "sea of stars", which means you can't afford to miss this iconic view!