Hi! I'm going to spend a week in Prague with a group of photographers. I'm sure that the old Prague will offer numerous photo opportunities, but I'm interested about urban decay and abandonned industrial sites as well. The socialist architecture and industrial sites are my main interest for black and white photography. So I would like to know if there are any abandonned factories, shipyards or industrial sites around Prague and how accessible they are? I'm also interested of large apartment building areas outside of town. Of course safety is an issue and I'd like to know how risky it is to move around such areas in the daytime. Thanks.