Error - Too specific:
Q: Where is the Chain Bridge?
A: Hungary
When copying the question into the browser address it automatically brings me to:
http://en.wikipedia.org/wiki/Chain_Bridge_%28Potomac_River%29
I guessed "Hungary" because this is a Hungarian based game... However, I did some research and was able to find "Chain bridges" in each of the other locations as well. Unfair question.
There are probably thousands of "chain bridges" in the world. Each of the answers could be correct.