Playing London Bridge under London Bridge

So we visited London Bridge in Lake Havasu City, Arizona and we had to play London Bridge underneath London Bridge! So what is London Bridge doing in a desert in America? I have copied the relevant information below for all you interested parties!

London Bridge is a bridge in Lake Havasu City, Arizona, United States, that is based on the 1831 London Bridge that spanned the River Thames in London, England until it was dismantled in 1967. The Arizona bridge is a reinforced concrete structure clad in the original masonry of the 1830s bridge, that was bought by Robert P. McCulloch from the City of London. McCulloch had exterior granite blocks from the original bridge numbered and transported to America, in order to construct the present bridge in Lake Havasu City, a planned community he established in 1964 on the shore of Lake Havasu. The bridge was completed in 1971 along with a canal, and links an island in the lake with the main part of Lake Havasu City.

So yes a large part of the London Bridge was actually moved here!