You'll find 10,000 trees and the impressive Meiji Shrine near Yoyogi Park. Grab a matcha tea ice cream to eat as you stroll toward the massive stone torii gates of the shrine. Then head to the Sensoji temple in Asakusa, where you can buy a wooden ema wishing plaque. If you're ready for lunch, there's plenty of street food located nearby.
Go to Harajuku for a mecca of adorable kawaii shops and resturants. Start at Takeshita Street and walk to the trendy Omotesando Plaza, stopping off at the famed Kawaii Monster Cafe. If you're looking for more, head to the Akihabara for all things anime, and maid and butler cafes.