This historic hotel invented the chocolate brownie.

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

A century-old hotspot for jazz, frequented by everyone from Charlie Chaplin to Al Capone.

Astounding collection of coin-operated games and automata.

This monument on Breed's Hill proves that one of the most famous battles of the Revolutionary War is misnamed.

This lighthouse and shipwreck museum keep a torch burning for the memory of the SS Edmund Fitzgerald.

The home made famous by the 1983 holiday classic is now a perfectly preserved shrine to the movie.

Island where motor vehicles are banned -- home to the only carless highway in the United States.

The fifth-longest suspension bridge the world, connecting one Michigan peninsula to another.

An extensive collection of ancient Egyptian artifacts and mummies.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

Every year, over 25,000 monarchs overwinter in Pacific Grove.

A "gravitational anomaly" located in the redwood forests just outside of Santa Cruz, California.

An earthwork sculpture built by Robert Smithson in the Great Salt Lake only reemerges during drought.

A towering tribute to decisiveness stands on the spot where Brigham Young and his followers decided that this must be the place.

The largest island on the great salt lake is home to curious creatures and strange stories.

A hidden garden of stones engraved with scriptures, a Joseph Smith Sphinx, all carved by one man.

Visitors to this library are in for a real-world education in modernist architecture.

This concert pavilion on the shore of the Great Salt Lake has been destroyed by fire, water, and disinterest but keeps coming back.

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

Hell on Earth is actually a small town in Michigan where anyone can be mayor for a day.

Lovingly nick-named the "Brick Dick" this municipal tower was winner of the World's Most Phallic Building Contest.

Trade in that pesky human soul for cold-hard circuits.

Berry Gordy Jr.'s old home was the original headquarters of Motown Record Corporation.