These towering cliffs crystalize each winter, forming sheer walls of ice that are open for climbing.

A shop for all your magical needs and notions.

Grand architectural relics gain a new life in this Pennsylvania warehouse.

Hike the ruins of a zoo that was shut down by an unsolved murder.

This rusted car found in Petrified Forest National Park's Route 66 exhibit may be the most photographed abandoned car in the country.

The historic building's ornate stained glass fixture has survived the devastating 1906 earthquake, ensuing fires, and multiple redevelopment attempts.

This museum dedicated to the history of the medical bone trade and human osteology.

Some believe this tree to be more than 1,500 years old.

A 200-year-old live oak on the banks of Lake Pontchartrain.

Picturesque and haunting, these 160-year-old stone ruins on top of a bluff are the only remains of a settler's legacy.

Under the right conditions, rocks will move across this dry lakebed, leaving trails behind them.

Once owned by the largest employer in Colorado, these ovens have been abandoned for over a century.

One of the oldest show caves in Arkansas.

A little-known, but surprisingly large waterfall on the Little Truckee River in the northern Sierra Nevada.

An immense cave that has served as an outlaw's treasure trove, an underground dance hall, a nuclear fallout shelter, and much more.

This open-pit mine is now an abandoned symbol of Bisbee's copper-mining heritage.

Louisiana's tallest waterfall is only a short hike away from the middle of nowhere.

This sound-art installation features songs composed using only the Mid-Hudson Bridge as an instrument.

This prehistoric karst cave is situated near a working ranch and historic warm springs.

A ceramic-tiled room at the Seelbach Hotel said to have secret tunnels used by Al Capone and a crowd that helped inspire F. Scott Fitzgerald's 'The Great Gatsby.'

At the western edge of Palm Springs, a rugged desert canyon trail leads to a waterfall at the base of the San Jacinto Mountains.

You might recognize this historic Oregon mansion from its appearance in 'The Goonies.'

This depiction of the earth mother welcomes new life into Aurora Highlands.

Take a stroll through this centuries-old tunnel of enormous moss-hung evergreens, nestled among the grounds of America’s first public sculpture garden.