A Spanish town built into the cliffs.

A ghost town at the airport is now a refuge for blue butterflies.

The lowest point in North America is home to an undrinkable pool surrounded by fields of geometric salt flats.

This historic stone bridge has an entire neighborhood clinging to its sides.

A part of the world's largest marsh seems to be growing bright red Martian grass.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The site where one of the most famous poems of World War I was composed is preserved to honor the legacy of the work.

Established in the '60s, a family-owned tropical drink bar founded by Ray Buhen, bartender to the stars.

Quite simply the largest tree in the world (by volume).

This tiny town features a tiny town that acts as a 3D snapshot of the town during the 1950's.

A marvel of Byzantine engineering under the streets of Istanbul.

The hidden jewel of Disneyland: a members only playground for the Disney elite.

Panorama exhibition hall in old silent theater with a beautiful backyard garden.

America's most famous piece of self-built architecture.

The last moments of the ill-fated Pompeiians, frozen forever in plaster.

Pompeii's less famous neighbor is still revealing her secrets.

Hauled from the water's depths, Henry VIII's flagship is preserved in this capsule-shaped museum.

See the sky in a new way through this art installation.

A church that bred legends, and served as an inspiration for the Da Vinci Code.

Walled family complexes in Southern China.

This one has sailed five times as far as Sir Francis Drake's famous ship.

Historic funicular railway, believed to be the shortest railroad in the world.

The legendary building that needed ghostly approval before being built.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.