Thousands of coffin-like pillars make up this controversial Holocaust memorial.

This too-low North Carolina railroad trestle is still a notorious big rig executioner.

A glimpse of a waterfall is reached by a steel catwalk along a slot canyon located in an Ouray city park.

The giant stump of the once towering cottonwood where Ute people held tribal meetings.

This otherwise unremarkable ski town building marks the site of Butch Cassidy's first robbery.

A sign marks the plane crash that caused two nuclear bombs to fall in North Carolina.

A piece of outsider public art accompanied by a strange urban legend.

A replica of where the Last Supper was held.

A Christian-themed amusement park and complex rocked by scandals.

This sun-scorched lakebed contains samples of half the natural elements known to humankind.

One of the most unusual geological features, recognizable from a dozen hit movies.

The tragedy of the Japanese internment camps is remembered here by a stark "Soul Consoling Tower."

This rock formation named for its unique shape is one of many that call the Alabama Hills home.

A ghost town originally established and governed solely by Black Americans seeking a place of their own, free from discrimination.

A B-17 bomber stands as a memorial to the residents of Tulare County who served in World War II.

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

Instead of faces, these sculptures have barcodes—statements on societal dehumanization.

This downtown Dallas art installation is always on the lookout.

The oldest surviving mosque in the UAE has mysterious origins and unusual architecture.

The United Arab Emirates's biggest and oldest fort pays homage to a lost era.

An abandoned desert hamlet swallowed up by sand.

The world's largest frame offers spectacular views of the city's past and present.

This artificial archipelago was supposed to resemble a map of the world.

A preposterously luxurious hotel with gold-plated iPads, Rolls Royce chauffeurs, and a staff that trains by watching "Downton Abbey."