Hidden in plain sight on the Hudson River is an abandoned train station where nature has taken over.

Along the Palisades skyline are the ruins of a large mansion built in 1911 and demolished in the 1930s.

This tiny structure was built by the creator of the Brooklyn Bridge.

An off-the-beaten-path place to literally hang beneath Milwaukee's Holton Street Bridge.

There's a mini version of Iguazu Falls hidden in the Balkans, and it's got a rope swing.

This cluster of little wooden huts once ground local farmers’ wheat into flour during the days of the Austro-Hungarian Empire.

The second largest waterfall by volume in the U.S., Willamette Falls is outdone only by Niagara in the amount of water that is pushed northward.

This Oregon farm is dedicated to teaching people the professional art of tree climbing.

World's largest porcine hairball sits in a collection maintained by Benedictine monks.

Toy museum in a former tavern is the expression of one man's life pursuit of the aesthetic power of cartoon imagery.

A son's promise to his dying father in the form of a covered bridge filled with thousands of seashells.

An encyclopedic collection of mammal penises.

Staves, storm-calling, and of course, necropants.

Decades of discarded bottle caps line this alleyway, a fixture of Texas A&M.

A historic neighborhood church is reborn as a psychedelic arts collective.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

Dead weights honor the dead of Portugal's fishing industry.

An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

Whimsical sculptures dot a woodland path surrounding their creator's old summer cottage.

At Macon’s oldest cemetery two members of Allman Brothers are buried side by side.

The historic home still shows the scars from a little run-in with the British in 1813.

Though it's unclear why it's there, the lifelike sculpture of the giant lizard is oddly charming.