A fun 2.5 hour historical stroll thru a park, past the music hall, into an old church, and crypt, and into an underground brewery. The guide was well versed in the history, and was incredibly detailed in story telling. He was also very sensitive to keeping everyone safe and engaged. Dont be concerned if you are claustrophobic; I am, but the underground spaces we huge and well lit, with very good air flow. Highly recommend! Oh…and wear supportive shoes, as footing is uneven in many places.