Saint Catherine's Church in Vilnius, Lithuania, is a magnificent Baroque landmark located within the UNESCO-listed Old Town. It is easily accessible on foot, though visitors with mobility issues should check for specific accessibility features as the main entrance may involve steps. The church is perfect for both solo exploration and as part of a guided tour of Vilnius; independent visits typically last 30-60 minutes, allowing appreciation of its architecture and serene atmosphere. It generally operates year-round, though it's advisable to check current opening hours, especially during holidays or for specific events like its popular classical music concerts. Entry is typically free, but donations are welcomed, and concert tickets are sold separately, usually ranging from 10-30 EUR. This historic site is celebrated for its stunning design and serves as a vibrant cultural venue.