I have seen several photos of GWB voting at the fire station and it alway seems a strange venue. Is this a normal one in the US as the UK it is normally school or church halls? (In my area anyway)
In the U.S., voting can take place pretty much anywhere. Each state establishes its own rules for voting. In California (and probably most, if not all states), each county has an appointed Registrar of Voters who is responsible for the entire process within his or her county.
Each county is divided into multiple precincts, and each precinct has its own place where the residents of that precinct go to vote. The idea is to have a precinct within a mile or less of every resident in every county in our vast country.
It could be a private home -- the owners volunteer to turn one room in their home into an election-day polling place. Or it could be a school or other public or privately owned building. It would not likely be an actual church, although it could be a school building associated with a church.
Last year, I voted in the local American Legion building. The American Legion is a private-sector veterans' organization.