Potato-peeling mannequins, Inca art, and a dangling tuber mobile help trace the history of fries at this Belgian museum.

The bronzed skull of a beheaded traitor was affixed to the city gate in the 17th century.

Christ's blood preserved in a Belgian town.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.

A man throwing a giant severed hand towers over Antwerp’s main square.

This small corner bar is home to a rare 1930s dance organ that still plays tunes for one Euro.

To enter this cluttered-yet-cozy sanctum of Belgian brews, ring the bell and tell the gatekeepers you've come “to taste beer.”

The patron of this extravagant Art Nouveau confection insisted that nothing less than a boat should project from its facade.

An open-air sewer system that was covered piece-by-piece over 300 years.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

This narrow Ghent alleyway is an officially sanctioned street art tunnel.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

A Museum of Psychiatry in a still-operating mental institution.

This memorial to a family's dead son has survived a century of hurricanes and earthquakes.

This ''hidden'' 19th-century bridge played a simple, yet important role during the Spanish-American War.

This former railroad bridge was named after the great river that once flowed below it.

This tiny home was originally a narrow alleyway.

Legend has it this historic port was a popular hideout and smuggling spot for pirates.

An enchanting natural wonder in Puerto Rico's Camuy River Park.

This giant bronze image of Christopher Columbus embarked on a voyage of its own.

Legend tells how a Spanish soldier disappeared from this isolated sentry box without a trace.

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

Years of neglect and nature took a toll on this 19th-century lighthouse.

This former sugarcane transport tunnel is now a portal to a lovely beach.