A tribute to Ponce de Leon's supposed quest for eternal youth.

At HopCat, a marker honors fictional creatures with the ability to travel the missing dimensions of Kcymaerxthaere.

A giant gun barrel in Barbados that once hoped to shoot outer space with science.

Florida's oldest bar was once a morgue, complete with a hanging tree and gravestones.

The ruins of this temple were later chosen by Pope Celestine V to found an abbey and a hermitage.

The longest and tallest aqueduct in Britain can actually be sailed across.

Home to the world's oldest wooden building.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.