Silesian Opera

Extensive display of regional prehistory and history. The permanent exhibitions are free on Sunday.

Stonking great cathedral to 20th century industry, with its sturdy clocktower, hall and chimneys, this opened as a coal-fired power station in 1920. In the 1970s it was converted to a hybrid power and heat station, thus heat was no longer just a by-product but intentionally created for local industry and housing, conveyed by steam pipes. It was largely redundant by the 1990s but kept on as a reserve, then closed in 2011. There's talk of making it a museum, but no-one wants the huge burden of maintaining this derelict complex. Occasional guided tours visit, don't wander in by yourself as it could collapse any minute.

a neighbourhood of mine workers' apartments, laid out on a grid in 1907-22 in sort-of-Art Nouveau style. It's atmospheric, but a rough neighbourhood so don't linger. The intended museum can be found only on the Internet.