The medieval castle built in Chorio, the main settlement of the island is the mani sight of Kimolos. The castle was built from Venetians during the period of the Venetian Duchy of Archipelagos established in Cyclades in the 12th century.
The folk and maritime museum of Kimolos is located in the castle and exhibits tools and objects of everyday life of the past. The archaeological museum is also located in Chorio and has some interesting Cycladic findings and many photos of the island.
Some of the most impressive bays is this of Gerakia Cave and the beach of Agioklima where you can enjoy the hot spring flowing at the waterside.