In addition to the temples described in other reviews, the Chinese also left their mark on Nagasaki with several bridges. Most famous is the so-called Spectacles Bridge, built in 1634 by a Chinese Zen priest. One of Nagasaki's most photographed objects, it's the oldest stone-arched bridge in Japan and is named after the reflection its two arches cast in the water (although I wouldn't know, because I've never seen the Nakashima River larger than a trickle except once, after a heavy rain). There's a promenade along the river, complete with benches and children's playgrounds. It's a 5-minute walk from the Hamano-machi shopping arcade.