"...I guess that was your accomplice in the wood chipper?"

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

The world's largest mountain carving could fit all of Mount Rushmore inside it many times over.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

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

When waves crash onto this section of beach, the rocks sing a song.

One of two giant blue cockerel statues erected with an intentional double meaning.

A toweringly silly piece of modern art has been delighting locals since the 1980s.

A butcher shop in Minneapolis has all the meats and cheeses you’d expect from any of its kind—except that all the products are vegan.

A theme park attraction designed to turn your children into LARPers.

Six tiny houses built for working class people form the largest intentional cluster of Wright homes anywhere.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

The site of the first couple's first kiss is commemorated by the most adorable presidential monument ever.

Not to be confused with the iconic New York City skyscraper, this Chicago building is a vibrant hub for artists.

The beloved home to all publications indie, erotic, and punky.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Enormous small-business mecca in the Midwest, serving dozens of artists.

The 80-foot tire that looms over Michigan's I-94 was once a Ferris wheel in the New York World Fair.

A wacky two-story folk-art assemblage of carved and found objects, with lights, motion, and sound now in need of financial support.

Astounding collection of coin-operated games and automata.

The Beaux-Arts aquarium boasts a vast collection of saltwater and freshwater fish on an island in the Detroit River.

One man's attempt to create an artistic wonder on a run-down block in Detroit.

This sprawling bookstore spans four floors and has more than a million books in stock.