Something old, something new. Standing on the site of the Edo castle, The Tokyo Imperial Palace is the official residence of the royal family. The Edo castle was once the seat of the Tokugawa shogun, who ruled Japan till 1847. The Imperial Palace is a beautiful stone-built structure lying in the midst of a beautiful garden. A juxtaposition from the tall, concrete towers of the city. There are guided tours that will take you around the several administrative buildings and a small museum. But, I would recommend you explore this place yourself. The main premises are not open to the public, which could be a bit of a spoiler, but the East Gardens are a great place to get some fresh air away from the noise of the city.