• Heavy subject matter: the basement prison includes the former execution room, so talk it through before bringing younger kids
• Known as the KGB Museum, the name locals use, handy when asking for directions or a taxi
• Names on the outside wall, carved for the people killed in the building, worth a stop before going in

The museum fills the building where the Soviet NKVD and KGB worked from 1940 to 1991, opposite Lukiškės Square. Upstairs, rooms of documents, photos, maps and personal belongings cover deportations to the gulags and the partisan war in the forests.

The basement holds the preserved prison: the cells, a padded isolation cell and the former execution room. The subject is heavy, so it suits teens more than younger kids.