A "Texanic" (gigantic Texas) collection of Art Deco architecture at Dallas' historic Fair Park.

A unique botanical garden housed in three giant geodesic domes.

A giant, Gilded Age mansion that once belonged to the beer baron of Milwaukee.

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

Robots, lasers, and whoopee cushions, oh my!

"World's largest scrap metal sculpture" stands in an outdoor sculpture garden in the middle of Wisconsin.

A bizarre house filled with an astounding array of collections.

A piece of John the Baptist in the American heartland.

Four, 18-foot-tall badminton shuttlecocks lie scattered about the lawn of a Kansas City museum.

This giant green head remembers one of America's jazz giants.

An abandoned concrete jungle surrounded by a lush park.

The crumbling remains of the first Black-owned and operated hospital in Kansas City.

The world's largest collection of fine-scale miniatures and one the nation's largest collections of antique toys.

Community bookshelf of 25-foot-tall book spines.

The "World's Largest Underground Business Complex," a 55,000,000-square-foot city underneath Missouri.

This abandoned prison castle has become an imposing gallery of graffiti art.

This lakefront cottage was crafted in the 1800s and was once a sanitorium.

Legend says Dungeons and Dragons players can get their dice blessed at the creator of the game's memorial.

Plenty of old carney magic still haunts this photogenic amusement park.

The abandoned hospital whose elaborate ghost stories cover up the dirty truth - an uneventful sanitation issue and other mundane reasons for its demise.

Head underground and take a tour of the city's working sewer system, and see the underground river Senne, which defined Brussels for centuries before being covered in the 19th century.

This recently restored crypt was once plagued by liquefying coffins and exploding caskets.

The Belgian royal family's private depot now stands abandoned and forgotten alongside the tracks.

A fantastical 13th-century fortification sandwiched by a modern hotel in central Brussels.