A secret fresh water spring for animals and humans alike hidden along the most famous road in the United States.

A mother’s sweet tradition lives on with this unique memorial.

An L.A. traffic island where the faces of locals have been carved into massive granite eggs.

A Cold War site complete with rusty structures, hiking trails, and beautiful views.

The world's largest model of our planetary system.

Once a year, at exactly 11:11 a.m., this monument comes to life.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

The cobbled together compound of a deceased artist which now serves as a filming location.

During prohibition, corrupt city officials ran drinking dens under the streets of Downtown Los Angeles.

If there's another drive-through golf-cart bar in a bat-filled cave on top of a mountain, we don't know about it.

The eerie remnants of an ancient forest were hidden under the sand for centuries.

One man has carved a number of natural New Mexico caves into psychedelic sandstone temples.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

This ancient trail has claimed the lives of over 2,000 people.

Unknown to many, this sparkling turquoise lake hides amid Oregon's snowcapped mountains.

This extraordinary geological oddity resembles human-made pavement.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

This exceptionally well-preserved ancient marvel also houses a small museum dedicated to Jordanian folk tradition.

The original resting place of Queen Cleopatra and Mark Antony's only daughter.

The mysterious round rocks of Schooner Gulch.

No one's quite sure why there's a metal megaphone bolted on two rocks in the middle of the Mojave Desert.

In the middle of a remote desert town is a surprisingly opulent hotel.