PennDOT is selling off some of the older, less fortunate bridges in the state.  A full list can be viewed here, and the price is more or less whatever you feel like paying.  Very likely, whoever purchases a bridge will be responsible for relocating and/or demolishing it.  Still … how awesome would it be to pay $20 for a bridge, then spend a lazy summer afternoon knocking the hell out of it?  I’ll bring the beer — who’s with me?