Lighting up a landmark

Arizona's London Bridge shines brightly after bulb replacement.

Lighting London Bridge is no small task. That's what Lake Havasu City, Ariz., leaders discovered after they purchased the famed bridge that once spanned England's Thames River and reassembled it as a tourist attraction back home. To eliminate some of the bridge's maintenance costs, last summer, the city upgraded the lights on the bridge and subsequently cut its energy costs.