1. Originally a small fishing village known as Edo, Tokyo's current name means "Eastern Capital." Native Tokyoites may still call themselves "Edokko" (children of Edo).
2. The Imperial Palace is totally closed to the public, except on New Year's Day and the Emperor's birthday (Dec. 23rd), when he gives a speech to his loyal subjects.
3. Streets in Tokyo, for the most part, don't have names. Instead, addresses consist of a ward name (Shibuya, Shinjuku, Akihabara, etc.) followed by three numbers representing continuously smaller areas of the city.