The California capital city once stood 10 feet lower than it does today.

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

This tiny little island has, as the name says, just enough room for its single house.

A long-disputed island that Denmark and Canada claim by periodically alternating flags and bottles of liquor.

The abandoned remnants of a little sanctuary for world peace that fell into disrepair.

Several times a year, during low tide, two pairs of historic train tracks are revealed on this New Jersey beach.

This 19th century train workshop is a treasure trove of railroad history.

A tiny red pebble marks what may be the quietest outdoor spot in the United States.

The deserted railroad town had a last gasp as a ghost town attraction before being abandoned for good.

A technicolor place of worship for Elevationists.

The great American road trip, but smaller.

The nearly 120-year-old piece of pork wears a brass collar and was once a man's "pet ham."

What was once the largest NFL stadium.

The world's largest collection of the world's largest objects is in one small Illinois town.

A psychedelic labyrinth on the San Francisco bay.

A painfully obvious spy house sits right across the street from the Russian Embassy.

A plaque marks a former safe house on the secret route, now hidden next to a McDonald's.

At this California chicken ranch, four bucks will get you 18 eggs and a chorus of dancing animatronic poultry.

An abandoned bus station transformed into a museum dedicated to the history of Greyhound Lines, in the place where it all began.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The skeletal white beams stand as a monument to religious dissent.

This Manchester laundromat is hiding something.

A mysterious light floating in the trees of Arkansas may be a piezoelectric effect.

It took an artist 20 years to create this sprawling sculpture garden honoring the area's ancient inhabitants.