Klaipėda Castle, also known as Memelburg or Memel Castle, is an archeological site and museum housed in a castle built by the Teutonic Knights. The castle was first mentioned in written sources in 1252, and underwent numerous destructions and reconstructions in the centuries that followed.

One of most popular places in Klaipėda‘s old town is The Theatre Square. Another notable building is the Drama Theatre. Since the 18th century, the theatre has played an important role in the cultural life of Klaipėda. The square hosts a variety of concerts, the Sea Festival, the International Jazz Festival and other events.

Klaipėda's Old Town is different from the rest of Lithuania since it has a lot of German and Scandinavian architecture. It is unique with its fachwerk architectural style and the planned street structure, can't be found in any other old town in Lithuania. Its streets are geometrically configured very correctly, and the angle of intersection is always straight.

Ann from Tharau fountain at the center of the Theater square is the monument dedicated to Simon Dach, a German poet who was born in Klaipėda and studied at Konigsberg University.

Magic Mouse - a sculpture installed in the historical center of Klaipeda in 2006. Made of bronze and stone, the authors of the project are sculptors Sergejus Plotnikovas, Svayjunas Jurkus and architect Vytautas Paulionis.

The steel sculpture "Dragon" was created to illustrate one of the legends retelling the origins of Klaipėda. One of the stories tells of two brothers who went out to find a new suitable place to found a city. The 145 kg in weight, over three-meter-long dragon hangs on the wall is not just for decoration, but fulfills the function of a rain pipe. During rain, one can see water splashing out of the jaws of the dragon.

For many years the object of attraction in Klaipėda's Old Town was the granite sculpture called "The cat with the face of a gentleman", which was created by artist R. Midvikis in 1980. Twice, the sculpture was rebuilt after hooligans stole it, but soon enough it disappeared again. In the summer of 2006, on the occasion of city's birthday, the cat returned to its rightful place in the Kalvių street square.