A stunning landscape of bunkers that once stored chemical weapons.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Largest man-made excavation on earth!

A white oak with property rights.

A decommissioned Naval base now rents itself out for people who want to blow stuff up.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

The resting place of a Civil War celebrity's amputated limb.

This sculpture by artist Fritz Keonig survived the 9/11 attacks and now stands as a monument to the victims.

A world-class observatory in the California desert.

A former Confederate hospital serves as a remembrance of wounded and dead soldiers.

This symbolic piece of New Orleans architecture is also home to a few ghastly stories.

The final resting place of New Orleans' most famous voodoo priestess.

The oldest cemetery in New Orleans, resting peacefully for over 200 years now.

A dramatic, 360-degree recreation of Pickett's Charge in the Civil War.

This haunting tombstone comes complete with a heartbreaking story of love and loss.

Turning night into day in Victorian-era Austin to thwart a serial killer.

Continuing the tradition of the dime museum in style.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.

Approximately 250,000 people left homeless by the great earthquake and fires found shelter in Golden Gate Park.

The site of the climactic scene from the classic horror film is now a historic landmark.

Mind-blowing carvings and fantasy ice scenes grace the largest year-round ice environment in the world.

This cemetery has graves dating back to the 17th century, including the city's oldest carved tombstone and an ominous cryptogram.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

The final resting place of American icon Buffalo Bill, and a museum that aids in telling his tale.