Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

A shining sculpture made of 3,115 lights, the number of visible stars in the Northern Hemisphere.

To find the "unicorns of the deep" you've got to go downstairs.

This futuristically sylvan church is a glass-enclosed marvel of modern architecture.

A hidden barn-sized rendition of Grant Wood's most famous, and most parodied, painting.

Home with Gothic windows featured in a famous painting.

Beating out all other concrete competitors, this massive garden feature's pointy hat has earned it a world record.

A half-mile long and three stories high, this bridge over the Des Moines River Valley mimics a descent into a mine shaft.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

A collection of full-size movie monsters opened to the public.

The 340-year-old house that inspired the classic Nathaniel Hawthorne novel.

The headquarters in Salem doubles as an occult art gallery.

A museum dedicated exclusively to the lore and history of ouija boards.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

A Swedenborgian glass church surrounded by redwoods sits perched atop a massive landslide area.

Non-profit time travel mart sells goods you would need for a trip through the fourth dimension.

The private clubhouse for the members of the Academy of Magical Arts.

A bypass decorated with large wooden troll carvings.

A giant Troll lurks under one of Seattle's oldest bridges.