The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

America's only nuclear missile silo open to the public.

See massive fossils that are over 200 million years old in northeastern Arizona.

This 4,000-foot-diameter hole is touted as "the most well known, best preserved meteorite crater on Earth."

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

Rippling sand dunes frozen in the Arizona rock.

This strangely amalgamated museum explores the history of the Timex clock company as well as archaeology.

This park is home to a massive bird sanctuary. And maybe buried treasure!

This statue commemorates the importance of hat manufacturing to Danbury, once known as the "Hat City of the World."

It looks like a whale, it's part of Yale, and it's best-known by a nickname you can probably work out for yourself.

This roadside wonder is as mysterious as it is beloved.

This tribute to the founding father of the American dictionary originally contained a spelling error.

One of America's first spies started out as a teacher in this little red one-room schoolhouse.

This historic railway museum may have lost its passengers but not its love for trains.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

The oldest place in Hartford is a cemetery with thousands of bodies stacked beneath the grass.

A parade of antique steeds offers a quirky ride through history.

A lone tower rises above the cliffs in a city park, offering fantastic views of the Connecticut landscape.

This "thrice-cursed" island is allegedly home to Captain Kidd's lost treasure.

This small-town pizzeria won the Hollywood lottery.

The world's largest public collection of PEZ memorabilia.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

The once abandoned ruins of a Victorian beachside amusement park are now back in working order.

137 graves holding New England's earliest residents.