The main castle is still under construction and another tower can be visited. The ticket is about4-5 euros (forgot about it), but the refrigerator sticker inside is very nice! The top is open-air and you can enjoy the view of the city. There are two floors to see the history of Lithuania's independence. 1 euro can be taken by car at the museum. But it doesn't take much time to walk just the pebbles are a bit slippery