Thousands of migrating monarchs overwinter clustered amongst the eucalyptus trees.

An offbeat angle on the ocean viewed through an antiquated lens.

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

A sealed test tube said to hold Thomas Edison's dying breath was given to the inventor's friend and mentee, Henry Ford.

The plants form a living library and laboratory for researchers and students at Michigan State University.

A horse-drawn 1858 steam pumper fire engine encased in glass on the front lawn of a Michigan insurance company.

This Native American cemetery features decades-old spirit house hidden behind pine trees and moss.

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.

Run by a eugenics advocate, this aging institution conducted secret radiation experiments sponsored by Quaker Oats.

A war memorial that appears to ascend from its forested setting.

Built to bless whalers before their voyages, this Massachusetts church now features a ship-shaped pulpit.

The site of the Andover Witch Hunts, which ended with more witch accusations and arrests than Salem.

A Harvard-area eatery preserves the uncovered tiles of its century-old predecessor.

Utopia and nostalgia mingle at the site of Bronson Alcott's ill-fated agrarian commune.

The statue of John Harvard isn't actually John Harvard—or even, technically, the founder of the school.

The phrase "the shot heard around the world" was coined after a skirmish at this bridge.

A three-piece musical sculpture installed between the subway tracks at Kendall Station near MIT.

These beautiful garden buildings are among the oldest surviving greenhouses in the United States.

This bridge was the birthplace of a unit of measurement based on a fraternity joke.

This supermarket is suspended 25 feet above an interstate highway.

A historic custom house with ties to George Washington is now a shrine to local nautical history.

One of the last remaining movie theatres in the country that features a rear-projection system.

This wooly sculpture supposedly marks the birthplace of a famous nursery rhyme, or not.