Nykoping Castle is a medieval castle from the time of Birger Jarl. It is famous for the Nykoping Banquet of 1317 and offers a glimpse into Sweden's history and architecture.

Langhalsen is a beautiful lake in Nykoping. It's known for its calm waters and scenic views, making it a great spot for picnics and nature walks.

Sörmlands Museum is a regional museum in Nykoping, showcasing the cultural history of Sörmland County. Visitors can enjoy various exhibitions, workshops, and a cozy restaurant surrounded by a lovely park.

Nykoping Harbor is a beautiful waterfront area in Nykoping. It features ships, restaurants, and scenic views of the harbor, making it a great spot for a leisurely walk.

Nykopingsan is a beautiful river flowing through Nykoping. It is known for its clear waters and scenic views, making it a great spot for a walk or picnic.