Museum of Applied Arts & Design

This arsenal in the Lower Castle was built in the 15th century and stored heavy artillery. It's now part of the National Museum, displaying the country's pre-history and early history until the arrival of Christianity in the 11th century.

This is the Upper Castle of a complex of three built from the 13th century, much bashed about, and abandoned from the 16th. (The Lower Castle became the site of the Arsenal, Palace and Cathedral, and the "Crooked Castle" was destroyed in 1394.) You can ascend the cobbled lane and enter the courtyard free for views of the city, and the Three Crosses on the hill east. The ducal palace east side of the courtyard is just a shell, converted into a performance space. West side is the three storey red brick tower, now a museum.

The New Arsenal was established in the 18th century and mostly served as a barracks. It's now part of the National Museum displaying Lithuania's history and cultural heritage. As of October 2025, it is closed for major restructuring work.

This is a modern replica: the original was built in the 15th century, ruined in the 17th and demolished in 1801. A merchant's house was then built, which became part of the Arsenal. In the 1990s after independence the palace was rebuilt to the original plan, somehow without deciding what it would be used for, and to outcry as it blocked the vista from Cathedral Square. It's become part of the National Museum, with displays of palace history and reconstructions of the ceremonial halls.

This was the city's first power plant, opened in 1903. It exhibits electricity generation, industrial technologies, child-friendly interactions and transformation, the Tesla-inspired wizardry that enables long-distance transmission of electricity. They also have an Escape Room, €50 for 2-4 players.

Interactive museum of toys down the ages, child-friendly of course.