One of the oldest reform schools in the United States, home to wayward boys such as Merle Haggard, now abandoned.

A melancholy guardian doubles as a judicious godmother to this small town cemetery.

One of the few surviving examples of the first lock and dam system built on the Ohio River.

Visit a replica of the estate where Aaron Burr allegedly plotted a treasonous scheme against the United States.

The world’s largest underwater sculpture is found just off the coast of Nassau.

Recently restored menagerie of Victorian-era beasts.

A real-life Professor Snape once taught in this Welsh university building, which students of course nicknamed “Hogwarts.”

Historic fortifications form the boundary of Vatican City, but it’s not entirely surrounded by walls.

A nearly 500-year-old sculpture depicts a man eating a sack of babies, and no one is sure why.

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

This cemetery overlooking the Benbulben rock formation is the final resting place of one of Ireland's most beloved poets.

A stunning Victorian abbey and walled garden on a lakefront.

The somber sculptures commemorating Irish Famine on the river Liffey in Dublin.

Remote Honduran Islands with a colorful history.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Sloth rehabilitation center in the jungle of Costa Rica.

Monkeys inhabit the lush forest surrounding ancient Mayan ruins once considered sacred.

These roaring primates were considered a divine creature in the cosmology of the Maya.

Deep in the Guatemalan jungle stands an ancient pyramid that once marked the reign of a king.

Sparkling, calcite-covered skeletons of children who may have been sacrificed to appease an angry god.

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

The world's second largest single-dish radio telescope, once used to contact E.T.

This bleach-white graveyard overlooking the ocean is accessed through a tunnel.

A sculpture dedicated to the trade that gave the town its name.