The place that allegedly inspired James Hilton's depiction of Shangri-La.

Twice a year, visitors can tour the desolate site that birthed the Atomic Age.

Small church on top of a huge rock column.

The world's most remote airport.

More than 100 monumental tombs carved into rock are preserved at this ancient Nabataean site in the Arabian Desert.

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

The huge golden reliquary of a testicle-smashing saint.

Ghost Town in the Demilitarized Zone of the Golan Heights.

The largest known Ancient Egyptian obelisk.

A labor of love and aviation in Nigeria.

A massive yet whimsical statue pays homage to the art and joy of "flight."

Icelandic settlement in Manitoba established in 1875.

The first German gnome who popularized the garden decoration.

A 15th-century granary that played the role of futuristic slave quarters in the world of 'Star Wars.'

Sanctuary on a ridge near an ancient shrine to a "Black Madonna" built by the founder of Opus Dei.

One of the greatest maze designer’s greatest mazes.

A forgotten monument to Yugoslavian freedom.

Death rituals and sacrifice inside a Peruvian megalith.

A memorial to the murdered Jews of Kaunas.

100 massive sculptures in the Hudson River Valley.

The only pollutant in the clear blue water is sunscreen.

French commune at the heart of conspiracies.

Nature's biggest mammal swims in landlocked Oklahoma.

Two waterfalls flow down the cliff faces decorated with rare natural basalt columns.