Berthed at the Charlestown Navy Yard in Boston, "Old Ironsides" is the oldest commissioned warship still afloat.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

Over 50 whirling pools left behind from the glacial age.

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

One of the oldest used bookstores in the U.S. has been selling antiquarian treasures since 1825.

The bridge's highly-contested plaque (once again) honors Confederate President Jefferson Davis.

America's first nuclear-powered merchant ship is now a time warp to the atomic age.

This beautiful stone arch bridge wasn't even expected to stand for one day, but people have been crossing it for centuries.

Once home to seven different roller coasters, Glen Echo has undergone many transformations since its founding in 1891.

The remnants of a wooden-hulled fleet built and abandoned in WWI, now home to a thriving ecosystem.

Holding multiple historical boats and an entire 19th century village, this New England attraction is the largest maritime museum in the world.

The rusting remains of the largest assembled WWII fleet on the West Coast.

The king of U.S. high points towers over every other peak on the continent.

A collection of birdhouses await curious motorists and avian squatters.

This Art Deco theater is the last remaining opera house in the “little Broadway of the North.”

The remains of a large iron mill that once stood in the remote woods of northern Maine.

An unusually designed bridge from the 1920s was built to withstand the tides and winds of Maine.

This architectural onion has an original 1930's Jerry O'Mahony dining car at its core.

The first bridge observation tower in the U.S. offers one of the best views of Maine.

Turns out you can see the world without ever leaving Maine.

This 19th century granite fortification is one of the most well preserved forts in New England.

This handsome giant is said to mark the birthplace of the mythical woodsman and even had a cameo in a Stephen King novel.

The highest point in Maine is a grand gift to the state citizens that also happens to be one end of the Appalachian Trail.

The footprint of a frustrated devil in Munich's Cathedral.