135 bronze medallions mark a French meridian line which once rivaled the hotshot Greenwich timeline.

Ivy-covered Medieval tunnels cut through this charming town in France's Loire Valley.

At Monet's beloved home you can still see the Japanese bridge, waterlilies, and weeping willows that were the subjects of some of his most iconic paintings.

Known as the "Dodo Manège," this carousel features a herd of animals that have disappeared—or may be gone soon.

Egyptian Revival movie palace abandoned for decades and restored in 2013.

Indents in the pavement are all that remain from a grisly death machine in Paris.

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

This modest marker near Notre Dame identifies the very center of Paris.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

An important Mayan religious and trading center dating back to 200 BC.

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.

A massive underwater sinkhole made famous by Jacques Cousteau.

You may get stranded and everyone's peeing in the water, but at least there's cocktails!

Cavernous opening completely encased in Karst limestone.

Built in 1512, the oldest cathedral in the Americas.

The oldest colonial fortress in the Americas was once the home and later prison of Christopher Columbus.