London Bridge: Lake Havasu City, Arizona
After local authorities determined the old London Bridge, built in 1831, was sinking into the Thames River, the crumbling granite went up for auction as plans were drawn for a replacement.
The winning bidder -- Lake Havasu City founder Robert McCulloch -- paid about $2.5 million for the old one, then shipped it to Long Beach, trucked it to Arizona, and rebuilt it over a manufactured lagoon as a tourist attraction. It was rededicated in 1971.
Let's move farther west and take a look at one of L.A.'s famous landmarks -- the Hollywood sign -- on the next page.