No one messes with the Massachusetts sacred cod, not this time...

A more than 260-year-old crypt built on Boston's oldest English burial ground.

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

An oft-overlooked, magically musical monolith that stands majestically between Arlington Cemetery and the Iwo Jima Memorial.

During the American Revolution, this mansion hosted failed peace talks between the British and Americans.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

A crumbling hospital from the 1850s on Roosevelt Island.

An aptly-named street near the birthplace of the modern LGBT rights movement.

An ode to Japanese artist Hokusai, with a bit of a comical twist.

You can spend the night as an honorary lighthouse keeper in this quaint, historic beacon.

Step inside Lucy, the world's largest "elephant."

The longest-covered bridge in the state of Maryland.

One of the first intercontinental ballistic missile sites in the United States.

Dedicated to the history of the 1,000 nuclear missiles that once covered the Great Plains.

A six-ton, 12-foot-tall concrete prairie dog is touted as the largest in the world.

This prehistoric sinkhole lured exclusively male mammoths to their death, much to the delight of science.

An antique Beechcraft airplane serves as a giant windsock for people driving through the blustery open country of eastern Wyoming.

Thanks to a loophole in property ownership, this alleyway has become a cacophonous street gallery.

Every president in history is immortalized in bronze in downtown Rapid City.

South Dakota's oldest operating brewery is housed inside a historic firehouse.

One man's quest to save his town with a trail of record-breaking sculptures.

This erect, phallic geological spire wasn't always named so domestically.