This pre-Revolutionary War grist mill ground corn and flour for soldiers in seven American wars.

An organ located deep within a cave, whose "pipes" are the geological features of the cave itself.

Outsider art meets paleontology at this roadside reptile repository.

The second-largest gold nugget in existence, displayed in a Las Vegas casino conveniently named the Golden Nugget.

This incredible collection of vintage pinball machines can be played at 25 cents a pop.

The neon signs from Las Vegas' past find their final resting place at this unusual graveyard.

The Iowa state contender for largest pan in the world oddly only comes in second or so.

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

These molds for fiberglass statues have formed an eerie, accidental sculpture park.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

A giant pair of thick black glasses mark the tragic demise of a trio of rock and roll legends.

This posh mansion began as a family's estate and ended as the site of a murder ripped from the pages of a pulp novel.

This massive roadside mascot was the first version of the giant to illustrate his butt.

Ever wanted to can Spam?

17,400 lbs., 12 feet in diameter, and 29 years in the making.

The fungus-shaped vintage gas station has served multiple purposes over its lifetime, and now serves ice cream.

The Midwest's reigning king of surplus stores is full of nothing you need and everything you want.

A Building for Your (Former) Funerary Needs.

A warehouse for all of your architectural details.

Sleepy Minneapolis block beats Guinness Record for most churches on one city block.

A Perpetually Under construction Park.

This old residential building was once the largest flour mill in the world.

The only arched bridge made of stone on the entire Mississippi River.

20,000 pieces in a Frank Gehry-designed building.