• Free last Sunday of every month for all visitors, so plan a family visit around it
• Four separate routes, each ticketed on its own, so a short visit can stick to the weapons and kitchen route or the state rooms and tower
• English audio guide for the castle and state rooms routes, €1 extra; family workshops run in Lithuanian

The residence of Lithuania's grand dukes, gone from the mid-1600s and rebuilt this century, is now a national museum. Four routes run through it: surviving castle walls and archaeological finds, furnished Renaissance and Baroque state rooms, weapons and palace kitchen displays, and temporary exhibitions.

The state rooms route climbs an observation tower with views over the city. Outside are a Renaissance garden and bas-reliefs.