Well-preserved ruins in the Pine Grove Hills of western Nevada.

An abandoned mountain village in Habib surrounded by walnut, apricot, and pomegranate trees.

Quite possibly the most isolated bus stop on Earth.

This spectacular fault escarpment, a popular hang-glider launch point, extends some 30 miles long and towers about 2,500 feet over the valley floors to the west.

The only female equestrian statue in Washington, D.C. is a 15th-century French heroine.

This lake—the second largest in the state— was hiding historic treasures beneath its surface.

Hues of distinctive blue to bluish-green color the slopes of these hills.

If you dare visit this fort, fire-breathing hyenas might devour your camels.

A breathtakingly steep set of stairs is carved directly into the face of the sea cliffs of Bonifacio.

One of Indiana's only natural sandstone arches is nestled between resort ruins and an old Boy Scouts camp.

Walk down these stairs to get an underwater view of Switzerland's Lake Zug.

A former Victorian swimming pool is now a tranquil and secluded park.

These thermal springs were once popular with residents of a nearby Roman colony.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

Northern Europe’s largest castle ruins sit precariously on an island cliffside.

The walls of this village church are decorated by two unique religious works of art.

This oversized flute-playing Ancestral Puebloan deity is also a landmark of Southwestern kitsch.

Despite monuments in other locations, this spot in a South Dakota field is recognized by the U.S. National Geodetic Survey as the center of the 50 states.

The tallest mud-brick structure in the world has been standing since the 1500s.

A group of college students hauled a desk up a mountain more than 40 years ago. The notebooks inside have become a makeshift time capsule.

A striking lighthouse with views of the Gulf of Mexico and of a military air show.

In the hills of southern Indiana is the idyllic studio and museum of legendary artist T.C. Steele.

A wealth of seafaring history displayed on the California coast.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.