This oddly shaped building is a surprising Soviet-era crematorium.

This exquisite, alienesque piece of Soviet architecture is being threatened by modern shopping malls.

Despite dreams of constructing this fairytale mansion, Albert Gotthard Nestor Cedergren never saw its completion.

This massive home was constructed by one of the greatest conservationists in Colorado history.

This luxury hotel suite is located deep in the bowels of an old mine.

One man's fascination with Turkey led to this backyard mini-city.

Cold War missile launch site which has been converted to a public park.

In the middle of a barren moorland, the remnants of a lost British Space Age stand like a 20th-century Stonehenge.

An out-of-place Air Force radar dome is all that denotes this park as a former missile launch site.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Another of California's unused Cold War missile defense complexes has become a graffiti gallery.

The most beautiful Taco Bell in the world even has surfboard parking.

The sounds of the world's largest fully functioning pipe organ dazzle shoppers at a Philadelphia Macy's.

The world's largest outdoor organ is played weekly by one of just two civic organists in the U.S.

The soaring gondola lines form the longest aerial cable car system in the world.

No longer the only, but definitely the oldest, fountain in Greenland.

In a country where driving from one town to another is literally impossible, this small stretch of gravel is a remarkable feat.

The narrow passages will challenge even the bravest driver.

Over 3 miles up in the Himalayas this pass is one of the highest drivable roads in the world.

Three rooms of bones, curios, and one artist's collection of natural artifacts create this intriguing museum.

One of the world's steepest streets seems to have houses sliding down it.

An unfinished rail tunnel that has since been used to house cheese and bats.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

Burial grounds for more than 1,000 bodies deep under the modern town of Rabat.