Four-story concrete hotel never opened to customers.

This alley-cum-fan gallery in the ex-Nirvana drummer's hometown holds the world's largest drumsticks.

The site of Neil Armstrong's first flight is marked by a full on replica of the moon landers.

There is an art, a science, and certainly a responsibility to occupying The Big Red Chair, and this is where it's learned.

The only surviving prototype for Buckminster Fuller's house of the future.

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

The writing studio of an American adventure author, built in the style of a medieval castle.

The park is home to the United States's only still-operating Dutch windmill.

Turnip-shaped island just off the Michigan shore in Lake Huron.

Ancient petroglyphs discovered only after a massive fire swept across Michigan in the 1880s.

This unusual three-way wooden foot bridge spans two rivers at once.

This New England drive-in was built to straddle the border between two states.

Every Saturday morning, this microbakery fills up with freshly baked pastries and sourdough breads.

This giant Massachusetts sycamore is said to hold the dubious distinction of being the "widest tree East of the Mississippi!"

This tall Massachusetts folly got its name thanks to all of the purple prose its vistas inspired.

A stunning garden filled with fantastical environmental folk art and sculptures.

An outlandish shoe shaped house built by an eccentric millionaire.

The home of possibly the least-loved U.S. president stands as a sort of unpopular Monticello.

This semi-spooky remnant of an abandoned hotel provides fantastic views.

Eighteen miniature death-scene dioramas.

This park contains a number of standing stones meant to heal and inspire.

It would take 35 firetrucks to fill this enormous glacial pothole.

A mine fire has been burning under the deserted town since 1962, but this church is still going strong.

This enormous abandoned factory is now a makeshift graffiti gallery.