It's hard to miss the stunning Asakusa Culture and Tourist Information Center designed by Kengo Kuma, located across the street from another visitor magnet, Sensoji Temple's Kaminarimon gate. Besides offering free guided tours, currency exchange and an information desk, the eight-storey building also sports a (covered) observation deck, which offers the best views of Sensoji without having to jostle through the crowds.
You'll find exhibitions and cultural events on the other floors but if you're short of battery power best make a beeline for the street-facing counter on the second floor – it's fitted with electrical charging points.