This otherworldly church spire reaches up toward the heavens.

This titanic oil company sign is a reminder of the Americana boom of the 1970s and also its commoditization.

The first car-centric shopping plaza in the U.S. brought a little bit of Spain to downtown Kansas City.

Famous church recognized for both its unique design and disciplined monks that live according to the Benedictine discipline.

Community bookshelf of 25-foot-tall book spines.

Once an ambitious nature spa, these forest ruins now provide a serene monument to failure.

Man-made geyser that rises to the exact height of the Gateway Arch.

The world's largest collection of the world's largest objects is in one small Illinois town.

When you visit his grave, be sure to rub the Great Emancipator's nose for good luck.

A once-booming Mississippi River town with a history of racial violence is now eerie and mostly abandoned.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

The only Bahá'í house of worship in North America and one of only a handful worldwide.

Golden plates containing what would become the Book of Mormon were believed to be buried on this New York hillside.

The world's largest collection of mechanical puzzles is a cornucopia of analog bafflers.

On the right bank of the Grand River a plaque remembers an imaginary painter who once awaited his youth.

An angular maze of concrete in Grand Rapids acts both as public art and as a staircase for fish traveling upstream.

This shop is named for a runaway elephant who smashed through its doors, stole some peanuts, and spent five days on the lam.

This former Indiana quarry has been transformed into a park and SCUBA site where divers can explore the drowned mining equipment.

This morbid, delightful curiosity shop offers everything from animal bones to human teeth.

One of the last few places in Manhattan that employed a pneumatic systemic keeps it on display.

A dark patch of the ceiling at Grand Central Terminal which was not restored is still stained brown by tobacco.

The first artificial white water river course in North America cuts right through an Indiana city.

Sleep where gangsters fell amidst smoke and flame, with nary a bullethole to show for the legendary struggle.

Natural catch-basin rocks covered in thousands of drawings spanning many millennia.