The only visible reminders of an elaborate engineering project that kept the tower from reaching the tipping point.

This headstone-like marker inscribed with three words has been an utter mystery for over a century.

Spike Lee's provocative film is officially honored right where it was made, the first time a work of art was used as a secondary street name.

A former Nazi lookout tower with a magnificent view of the Rhineland.

An ancient rogue artist community hidden next to one of the world's most glitzy and glamorous cities.

The 14th-century ruins are said to contain healing powers.

An archival collection of over 2,200 case studies which includes human brain specimens and tumor specimens.

Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

An awe-inspiring giant blue whale jaw bone stands in the center of this Dutch island.

This tiny 1930s Art Deco airport is a beautiful remnant of a bygone era.

The bridges portrayed on EU currency aren't fictional anymore.

The walls of Germany's Parliament still show the scars of the Red Army takeover in World War II.

The Neapolitan Cult of the Dead still cares for the skulls at this mini-Fontanelle.

This odd museum/art gallery embraces the physiological, zoological, and ethnographic side of sex.

This fairy-tale, neo-Gothic church in the Azores is a world of magical realism.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

The mystic whose incorrupt corpse still attracts the faithful.

A neo-Gothic temple in central Mexico featuring a labyrinthine network of crypts.

Macabre symbols of death and mummies on display set the tone of this Italian purgatory church.

Crumbling ruins of the thermal baths that once attracted royals and aristocrats from throughout Europe.

A remote desert lookout offers unparalleled views of the California badlands for those who brave the trek.

Statue of Lenin, from Cold War era Czechoslovakia, now in a neighborhood of Seattle.

What started as a tongue-in-cheek shrine is now a full-blown museum celebrating "The Hoff" and his longtime love affair with Berlin.

A wunderkammer of mysterious objects and stories.