The Naval Museum of Kalymnos is housed in one of the most beautiful neoclassical buildings. It opened its doors to the public in 1994. The majority of the items exhibited concerns sponge fishing. In addition, there is an impressive collection of old photographs, equipment of older diving systems, machinery and tools for treating sponges. Also, in the exhibition you can see traditional costumes of Kalymnos, musical instruments and old household tools.