This historic hotel invented the chocolate brownie.

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

A haunting statue called "Eternal Silence" has quite the reputation among visitors with active imaginations.

An enormous park-like oasis, full of famous Chicagoans' graves.

A monument to the art of slicing people open.

A Bibliophile's Dream.

This whimsical Oz-themed park had a wonderful impact on the surrounding neighborhood.

A lush green oasis in the middle of Chicago.

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

To truly appreciate Detroit's landmark skyscraper, you have to step inside.

Controversial tribute to the heavyweight champion boxer who grew up in Detroit.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

This centuries-old gothic monster has been converted into a sprawling, glossy bookstore.

One of the oldest hospitals in the Americas is now decorated in hallucinatory murals.

This crumbling UFO is one of only a few remaining "moveable ski chalets" of its kind.

Known as one of America's most beautiful public restrooms.

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

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

This intricately carved and hilariously huge bed was such a famous symbol both Shakespeare and Byron used it in their writing.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

These mysterious Viking chess pieces spent centuries hidden on a remote Scottish island.

A beautiful but toxic fountain of mercury.

A subterranean display of public art and architecture.