This peaceful, round shrine in the middle of the Sri Lankan jungle acts as a beacon of peace.

A site where “the ravages of the war are more striking…than any other place in contemporary Spain.”

A Franco-era dam flooded (almost) everyone out of this centuries-old Aragonese town.

This overlooked museum houses an amazing collection of rare, antique typewriters.

This beautifully deceptive waterfall is something far different from what it appears to be.

The masses at this church incorporate enough moonshine and animal sacrifice that they are no longer recognizably Catholic.

The highest point in Belgium is a staircase to nowhere.

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

This giant urban staircase was built to keep the city's brave fighting men from getting waylaid in the red light district.

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

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

Somewhere there is a giant who can no longer poop, but now travelers can stay inside his anus.

This ghost town in Belgium will lose its street art when it ceases to exist.

A 14th-century fortified keep showcases the masterpieces of an ingenious 20th-century clockmaker.

What was once a bustling mining installation is now a bustling hub of contemporary art.

Hundreds of hidden passageways weave through the old quarters of Lyon.

This whimsical castle of grottoes was the labor of love of a French postman, and one of the greatest achievements of outsider architecture.

A marvel of Byzantine engineering under the streets of Istanbul.

This tiered waterfall is so pretty it may cause visitors to cry tears of their own.

Believed to have once stored either human remains or rice wine, thousands of mysterious stone jars lie in ruin.

In the world's most bombed country relative to its size, this incredible organization helps pick up the pieces.

Teeming with illegal goods and services, this towering maze of vice is also a popular tourist accommodation.

An ordinary pond with fish from out of this world.

The sound of swaying stalks in this stunning grove has been named a governmentally recognized sound.