The Museum of Sopot - Claaszen's Villa is situated near the promenade by the sea in a beautiful green park. The villa was built by Ernst Claaszen in 1903, and since 2001 it has been the Museum of Sopot, where every possible relic from the past connected with Sopot is gathered (old maps, tourist guides, postcards, documents, the menus from hotels and guesthouses, family photo albums, etc.).

Grodzisko is an archaeological reserve where you can discover how the early medieval Pomeranians lived. It is located at 63 Haffnera Street, between the valleys of two streams, about 400 m from the sea. This is the remains of a fortified settlement from the VIII and IX centuries. There are earthworks in the shape of a horseshoe surrounding the settlement's parade-ground (area 0.15 hectares) and a 6-metre-deep moat, guarding access to the fort from the west.

Sopot, ul. Bohaterów Monte Cassino 53

This Museum was opened in 2003 and has 3 permanent exhibitions:
Coastal Nativity – nativities composed of elements from the sea
Various fishing scenes – sculptures by country folk
Coastal boats and cutters – model boats and cutters which fished the bay over the past 100 years.