Bermuda: Gibbs Hill Lighthouse
Gibbs Hill Lighthouse is the oldest cast-iron lighthouse in the Western Hemisphere and one of the oldest in the world (built in 1844, it’s made of steel blocks bolted together, they didn’t know how to bend steel back then). The lighthouse itself is 117 feet (36 m) tall, but it stands on top of the highest hill in Bermuda bringing its total elevation to 354 feet (108 m) above see level. You can get to the top of the lighthouse and see the entire archipelago of Bermuda and beyond. The planes can see the lights from over 100 miles out (which I guess is helpful not to get lost in the Bermuda Triangle).