Clusters of abandoned buildings hint at the facility's 144-year history with psychiatric health.

One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

One of the largest underground systems runs under Canada's largest urban center.

A unique collection of Science Fiction, Fantasy, and everything in-between.

One of the Seven Wonders of the Modern World holds the world's tallest metal staircase.

Little island known for its massive beachfront "flowerpot" pillars.

305 homemade stone stairs wind their way up the Hamilton escarpment.

Soaring over the Niagara Whirlpool since 1916.

This small-town Connecticut restaurant gives each diner a free book from its vast library.

It may look like no more than a full-scale model, but every part of this full Space Shuttle stack had a working role in aviation history.

A jaw-dropping "megalibrary" that turns book-browsing into a geometric adventure.

The rough and tumble president's childhood home displays the shirt he was once shot in and the speech that saved him.

A hands-on traveling collection of the innovative devices of yesteryear.

A treasure trove of artifacts, books, and artwork from the "golden age" of exploration.

A storefront museum in Asbury Park honoring the Jersey Shore’s deep history of mystery—including the Jersey Devil.

A tiny museum housed in a New York freight elevator specializes in the "overlooked, dismissed, or ignored."

Elevated freight railway turned wildly successful urban park.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

Walk through the history of American pop culture.

A 19th century library favored by Edgar Allan Poe and H.P. Lovecraft, known by locals as "the Ath."

A reliquary of pop culture marvels, including the world's largest (and most terrifying) Jack-in-the-Box.

Erected in 1697 this Philadelphia bridge is the oldest surviving roadway bridge and perhaps the oldest stone bridge in the United States.

An eccentric inventor's castle home with its own indoor weather system.

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