On the outskirts of a desert trading village high on the Andean plain, steel giants have been destroyed by salt winds.

An enormous concrete structure built over a nuclear crater.

Most-visited and most-photographed slot canyon in the American Southwest.

Unusual hexagonal rocks formed by cooling lava named for their resemblance to traditional Japanese tatami mats.

This rare example of a "tidefall" is a spectacular drop from the cliffs down onto the beach.

A local farm's collection of unusual structures from a now defunct storybook amusement park.

Ship skeletons haunt Baltimore's waterways.

The likeness of the Baltimore music icon was unveiled in time for the anniversary of his Senate hearings on music censorship.

A lovely aquatic park built by a one-armed Civil War veteran who made a fortune from lotuses.

One of the dwarven trees dates back to 1625 and survived the Hiroshima bombing.

The United States Capitol's former columns still stand.

The first declared National Monument in the United States.

A giant concrete orb in far north Iceland marks the ever-shifting boundary.

Roman ruins top white travertine terraces formed by ancient hot springs.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

A town church once nearly submerged by the damming of a river is now hauntingly visible as the water recedes.

Ancient rock-hewn town that witnessed key events of Georgian history.