Derby Hippodrome
You don't need to travel thousands of miles to see ancient ruins (well it's old).... I think the Hippodrome Restoration Trust has finally given up and it's now up for redevelopment.
http://www.youtube.com/watch?v=66cj-J21poQ&feature=mfu_in_order&playnext=1&videos=jJ8eKMoRMIg
And instead of the Brandenburg Gate, how about the old Greyhound Stadium in Derby:
And can't afford Niagara:
The River Gardens, Derby