My experience in other countries BUT the USA, tripod use is OK and isn't subjected to the same level of hassle. The only people that approached my in Prague, did so to ask about my yellow Hasselblad, my photography, talk about their own photography experiences, even the local law enforcement. I've come to learn that asking about certain subjects on any internet board, even APUG, is usually a crap shoot. You're getting what people experience, not exactly what is the law or what is the right thing to do. Ask me if one can jay walk in NYC, my answer is sure, but the law is otherwise. If you really want to know, ask the Prague city government first via the internet and then ask about local customs. Have fun, post lots of pics into the gallery.

Regards, Art.