A small island dotted with old, historic Finnish buildings.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

A lovingly curated curio shop in which the taxidermy wear newspaper party hats, and peanut shells are spread across every surface.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

A subterranean house of worship carved right out of the bedrock.

This endearingly discomfited urinating statue commemorates the sneaky pees had by us all.

This abandoned Greek island was the last active leper colony in Europe.

This secret coastal village is studded with pastel-colored houses all piled on top of one another.

The hermits of Karoulia protect their asocial lifestyles by living on the vertical face of a treacherous precipice.

Two churches shoot bottle rockets at each others' bell towers in an unusual Easter celebration.

A Bronze age settlement on the Greek island of Santorini might have been the inspiration for Plato's Atlantis.

Perched on a spindly rock spire in a Greek archipelago, this lighthouse would make a perfect wizard's tower.

Hidden in a secluded Greek cove is a pristine beach marred only by the rusting smuggler's hulk stranded on its shores.

Monasteries on rock pillars, once accessible only by frayed ropes.

The wreckage of a crash that killed nine people still litters the Franklin Mountains.

The house's confection-like decorations are the result of one man's painstaking work over decades.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.

Did Inca children also slide down these smooth rocky slopes above Cusco?

It's hard to believe the dizzying patterns covering this abandoned mine are completely natural.

The perfectly named cave drop is the deepest in the continental United States, almost matching the height of Seattle’s Space Needle.

A little-visited waterfall in an otherworldly landscape.

Nestled in the hills of Tuscany are gorgeous, multicolored hot springs.

Incredible rock formations jut from the southern end of this spectacular stingray-viewing spot.

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