what do you guys think?
Well, I don't if it is a good plan for making money, but it is certainly interesting idea :-) If that is your plan, then definitely you should check this places:
(there is a possibility that you would have to register (for free) in order to gain access):
This is a forum where construction geeks both hobbists and professionals shares opinion about new and old buildings. Every good photo is appreciate there :-)
Just to show what you can find there:
Warsaw National Stadium
Poznan Stadium (almost finished)
Wroclaw Bridge on Highway (supposedly the biggest of this kind (concrete category) in the world)
[sources: all pictures from polish forumers of SCC]
PS. Whatever some grumblers will tell you, there is plenty of interesting construction sites in Poland right now. Is it boom? I don't know, but definitely there wasn't anything similar in Poland for couple of decades...