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

A giant light 13 feet high shines near Thomas Edison's old Menlo Park lab.

What began as an art installation is now the private drinkhaüs for a brewery's employees.

A historic grist mill and active sluice on the Black River.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

The remains of a community that was forced to move for a dam that never materialized still rot in this Pennsylvania park.

American involvement in World War I officially ended in 1921 in New Jersey, three years late and thousands of miles from the battlefield.

Local lore claims this park is named after a young woman who jumped off a cliff.

A recently abandoned psych ward at the end of Sanatorium Road.

The narrowest house in America is seven feet of pure spite.

A monument marks the location of the first successful steamboat demonstration.

A cave on the Maryland border where civilians took refuge during the bloodiest battle of the Civil War.

A field of nothing but boulders which resembles a giant's gravel driveway.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

For 60 years, the academy had no permanent location until members voted Washington D.C. as its forever home.

The span is crooked and made from two older recycled bridges.

The ruins of this long-abandoned unsuccessful gold mine can still be found.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

In the basement of the U.S. Capitol Building is a hidden storage room full of ornate floor tiles leftover from the 1850s.

This grand gothic brewery has been pumping out suds for over a hundred years.

Giftshop catering to cryptozoologists and anyone with a sense of humor.

A park full of outsider art, created by college students studying outsider art.

The final resting place of one of the United States's greatest poets.

Where America's first doomsday cult awaited the end of the world.