Breathtakingly blue walls shimmer inside the "Glacier Behind the Town."

Seemingly grown on some other world, these New Mexico rock formations look like a disused science fiction set.

This frequently-photographed waterfall takes only a short hike to visit.

The magic's in the hole!

An homage to everyone's favorite prehistoric cartoon family.

A breathtaking array of ancient Pueblo structures and artifacts counterintuitively preserved by neglect.

Carved by a waterfall in a hard-to-reach rock formation, this heart-shaped rock has inspired romantics for decades.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

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

This New Orleans tree is filled with hidden chimes that produce a carefully tuned melody.

In the middle of an extremely unforgiving and desolate high desert is the most secret military facility in the world.

An underwater city for the dead.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

Behind this beachfront shop lies a spectacular, colorful sea cave with an equally colorful past.

A speakeasy takes on Chicago's drinking culture.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

A stunning, two-tiered waterfall made famous by poets, artists and the legend of a ghost dog.

One of the world's oldest and most massive living organisms is a grove of quaking aspens.

A beautiful Victorian-era cemetery, complete with a miniature village.

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

Hollywood's most famous landmark, the "temporary" sign that has stood for decades longer than intended.

A beautiful 62-acre Catholic shrine and botanical garden.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.