This museum offers an actual time machine back through Colorado's past.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

A collection of over 15,000 zines works to preserve DIY publishing culture.

This miniature feudal castle was built on a whim to honor a US Navy pioneer.

Inspiring Herman Melville and Henry David Thoreau, Mount Greylock in western Massachusetts is the highest point in the state at 3,491 feet above sea level.

Beautiful steampunk ghosts of early Massachusetts.

Eclectic collections, artwork, and some feline friends fill the writer's former home.

This small section of the Sleepy Hollow Cemetery is rotten with famous authors' graves.

Life-size bronzes of the Grinch, Cat in the Hat, Yertle the Turtle, Sam-I-Am, and the Lorax—and the author himself.

The ruins of a Massachusetts prison farm can still be found crumbling the woods of a state park.

35,000 grape hyacinths flow like water down a garden hill.

A museum dedicated to the quirky and colorful world created by Springfield's favorite son.

No one really knows how these old hobby horses got here, but the herd keeps growing.

The site of one of the strangest disasters in history—a wave of deadly molasses traveling at 35 mph.

Site of a famous 19th-century transcendentalist utopian community, now abandoned.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

Radical Bookstore and Community Space.

Over fifty whirling pools left by the glacial age.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

Unlike other abandoned asylums this empty institution welcomes visitors, just don't go in the buildings.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.

Three prestigious academic collections come together to create a world-class natural history museum.

The walkable ruins of an 19th century hotel, destroyed in a horse cremation gone wrong.

One of the now-less-hidden floral gems of the "Emerald Necklace."