A really fascinating underground tour of the complex of tunnels and small rooms that families allowed to brew beer in the 14th century dug by hand. Be warned, this tour originates from a building that is NOT within the Pilsen Brewery, but is in the old city town square, which is at least a 20 minute walk from the Brewery. We didn't realize this and by the time we found the building, our tour had started. The women at the ticket office were quite upset with us, and while we tried to explain we would be happy to join the next tour in whatever language it was in, as we realized we were late. Just a note to them - yelling at us in Czech doesn't make us understand you any better. But one employee did walk us down throught the tunnels to catch up with the English tour, which was about 10-15 minutes into the tour, although she clearly wasn't happy about doing this. Our male tour guide was wonderful - he obviously loved the history and heritage of his city. There are some extremely tight spaces to walk through, so if you have a thing for being in tight spaces underground, this might not be for you. But the few tight spaces open up into larger spaces that are not so confined. The area around the Underground Tour office is within the old city square and is beautiful!