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Avant garde theatre southwest edge of Old Town,.
© OpenStreetMap contributors
The Roman Catholic St Nick's, brick gothic, and the oldest church in Vilnius being documented in 1387.
Ames Room, Pepper's Ghost, holograms, all the staples are here. Children will love it.
Small independent museum of city history.
Šiuolaikinio meno centras
This has a permanent display of Fluxus artwork plus other rotating exhibitions.
Vilniaus rotušė
The present town hall is neoclassical, built 1799. It's used for civic events, and the simplest way to see inside is to attend a concert or similar, which may be free. The square is a venue for fairs, concerts, demos and so on.
Founded in 1334 and it's their monks who are commemorated by the Three Crosses. It's in shabby condition, but you can access the church daily 07:00-22:30.