Reaching this rock formation involves a hike through rocky rapids and springs where wild turtles reproduce.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

An Italian crevasse filled with abandoned buildings gives visitors a look at the world without humans.

This giant middle finger statue sends an unambiguous message to Italy's bankers.

An ossuary built in 1210 to collect bones from the Ospedale Maggiore of Milan.

A slightly creepy gallery of plaster cast models in the same museum as Michelangelo's David.

A fountain standing as a testament to a doomed alliance.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Macabre astrological automaton clock dating to the late 1400s.

Dedicated to this region's early settlements and rich history of salt mining.

An Austrian house of bones filled with hundreds of intricately painted skulls.

An ancient fortified mound raised over the millennia from settlements built one on top of the other.

One of Ayutthaya’s most iconic locations is a mysterious, hauntingly surreal miracle.

Thailand's distressed elephants find peace at this Chiang Mai sanctuary.

This extensive collection of dead bugs may be the world's most idiosyncratic and personal insect museum.

A peculiar museum that includes many drunken tales, a drunk driving simulator, and much more.

Inside this small chapel tucked away in the forest is one of the most well-preserved Danse Macabre frescos.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Island wonderland for communist autocrats.

A dazzling temple featuring a towering 12-meter golden Buddha.

Part shoe store, part sociopolitical art gallery, part zoo.

Baroque celebration of the end of the Great Plague of Vienna.

Macabre museum devoted to historical Viennese murders.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.