Apparently since the medieval times Plzen had an elaborate set of underground passages, sometimes…read moreforming three overlapping levels in depth. The passages were dug mostly for storage, although water control and siege protection also played some part. A small part of these passages has been restored, even smaller part is currently accessible for organized tours with a tour guide, departing approximately once per hour. Tours are mostly in Czech; these can be used by non-Czech-speakers via the use of audioguides; few time a day the tours are held in English, German, and Russian. The cost of the tour is approximately $10, this includes a coupon for free (small) beer in the nearby restaurant. Expect walking for about 1 km in a hardhat provided by the tour, in temperatures reaching 55F, on occasionally wet - but not flooded - floors. The tunnels themselves are quite interesting due to their elaborate structure; the museum placed some artifacts into the niches previously used for the storage, so one would also learn a bit about the Plzen's history. Definitely worth visiting if you are in Plzen for some other reason.

Nice tech museum for kids with plenty of interactive pieces to engage with. On the edge of the…read morecentre in a bit of a barren neighbourhood, so don't think you've had the full Plzen experience if you've just been here.

For kids, I don't think there is anywhere more fun in all of CZ! This place was huge, all the…read moreexhibits were interactive and the kids play place made me want to take off my shoes and jump in. There honestly isn't too much exciting for adults, which is why it gets 4 stars, but it is very much worth a trip if you have kids. The exhibits have signs in Czech and English so you won't have to worry about missing something. They have a dining area, lots of lockers for bags and a coat check. Plenty of bathrooms all over the place. The parking was super convenient and cost 40 czk. It isn't too far from the main bus station. Definitely a winner.