On Hilton Head Island this bronze King of the Sea rules all things briny—and lets you know if you’re late for lunch.

This WWII-era military installation once held an entire city within its walls - now, its walls are falling down.

Running under an entire mountain, the longest highway tunnel in North America is kept fresh using portal fans and jet fans.

This small city where almost everyone lives in the same building can only be reached via North America's longest tunnel.

Considered by many to be one of the most dangerous highways in Alaska.

Colorful boxes placed over the dead are left to rot and crumble.

An Alaska livestock farm devotes itself to harvesting wool from creatures that once ran with mammoths and sabertooth tigers.

This half-forgotten fortress was constructed by the Ottoman conqueror of Constantinople.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

A marvel of Byzantine engineering under the streets of Istanbul.

These tombs were built into the side of a mountain so that ancient angels could reach the dead.

Human ancestor’s 3.6 million year-old footprints.

A salty red wasteland in Tanzania is a breeding spot for endangered flamingos.

In Zanzibar, a historic 19th-century palace is a reminder of the world's shortest war.

This little valley along Highway 1 is engulfed by thousands of lilies during the spring season.

A volcanic cone that formed over 600 years ago.

California's longest-running tourist attraction is a stump.

This beloved roadside attraction welcomes visitors with his signature neon smile.

The arch that celebrated the completion of the Lincoln and Victory highways.

An iconic 1960s theater with a Buckminster Fuller-style geodesic dome.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

The only standing town in the United States that early Chinese Americans built for themselves.

Take a dip in the world's largest mineral hot springs pool.