The Gothic Cellar at Vyšehrad is a cool spot that dates back to the 14th century when it was part of a palace structure during Charles IV's reign. It was probably used for storage, with a dining hall and chapel on the first floor. Unfortunately, Hussite troops wrecked the place in 1420, but now you can check out the Historical Appearances of Vyšehrad exhibition there. So, if you're into history and old cellars, this is the place to be!