All that remains of a gigantic earth-moving machine.

This recycled wax museum may be the only one that features John Travolta in a Bible scene.

This NASA test station is home to some of the world’s largest and most powerful space environment simulation facilities.

A well-worn marker in a forgotten alleyway is all that remains of what had been one of Manhattan's most beautiful buildings.

The oldest Methodist church in the United States has been spreading the good news for over two centuries.

Monument to a forgotten NYC disaster that claimed the lives of 1,000.

Manhattan's Thirteenth Avenue was made on landfill then deliberately destroyed — apart from one small, obscure block.

A prized globe signed by Amelia Earhart and Charles Lindbergh sits in the Brooklyn office of the American Geographical Society.

A prohibition era watering hole for the police.

The last living thing to come out of the rubble after 9/11 is now a symbol of hope and resilience.

An odd, ancient window that may have once been part of a brutal prison is embedded in the side of New York's Police Plaza.

Though its celestial ceiling is impressive, the true star is the vast collection of French books.

Become a prohibition rebel.

Legend says train robbers stashed their gold within the depths of this unusual cave.

It would be a crime to miss it.

Swarms of butterflies cannot compare to the awe inspired by the publicly-funded nakedness once displayed in this sunken garden.

The so-called "Bridge of Thighs" in Palm Springs allows nudists to discreetly cross the road.

A living museum dedicated to the legendary woodworker and his soulful furniture.

This "synagogue" is not what it seems to be.

Centuries of crashing waves carved out this small hole in the rock, which lights up at certain parts of the year.

Where a staggering 747 ships were constructed during World War II.

A mountain range on an active U.S. Navy base hides thousands of mysterious prehistoric rock carvings.

An artist's vision for connectivity spans seven continents and 16 countries.

Experience the "opulence, grace, and grandeur of Eureka's most famous Victorian Inn."