The only surviving fragment of the lost Narragansett Pier Casino.

This blue behemoth of a bear is a colorful homage to Brown University's mascot.

This lighthouse was witness to the end of WWII hostilities and now collects creepy cairns.

This 3,500 pound obelisk was constructed with more than 1,000 reclaimed guns.

Unicorns, elephants, and bears, oh my!

Millions of numbers carved in glass represent the tattoos forced upon victims.

Dedicated to one of the darkest moments in Irish history.

The site of Paul Revere's historic two lantern warning.

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

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

The oldest still-operating tavern in the United States was once owned by a pirate.

The stone sculpture of an Ottoman soldier is an homage to a lost Providence landmark.

With some 500,000 books across five buildings, this bookstore is a reader's paradise.

The last holdout of a pre-Civil War rebel who took the matter of slavery into his own hands.

America's post-nuclear-attack chambers of Congress.

One day a year it is legal to jump off of this astoundingly tall bridge that spans an Appalachian gorge.

Right next to departures—how convenient!

These unusual rooms on wheels are holdovers from the 1960s.

A lone historical marker off the highway and scattered debris are all that remain of this Cold War-era missile site.

Extraordinary objects lurk in this quintessential regional museum.

The romance of early commercial flight still fills this Art Deco destination.

At Washington's Dulles Airport is a satellite museum (no pun intended) with three quarters of a million square feet of aircraft history.

This sprawling farm was once a Cold War-era hideaway for the nation's top diplomats.

This isn't your average roadway—it's actually a National Park and a transportation pioneer.