If drivers cross the rumble strip on this stretch of Route 66 at just the right speed it plays "America the Beautiful."

A replica of one of South Korea's National Treasures stands as a tribute to that country's relations with Mexico.

The Father of the Erie Canal has a magnificent grave marker that redefines the term "final resting place."

Once an integral part of Native American life, very few of these communal New England stones have survived to the present day.

The last of a gourmet supermarket chain, this store helped spark California's Food Revolution.

The tallest bridge in California was constructed for a project that was eventually cancelled.

This former boomtown "island" is now submerged below Folsom Lake.

This museum looks at the history of one of America's most famous prisons and most beloved albums.

This 19th century hydroelectric powerhouse was the first of its kind.

A journey begins with a single step, and for many, the road-trip of a lifetime started at this Chicago intersection.

Pay homage to the quintessential P-town dive.

Provincetown's night owls flock to this 52-year-old pizza joint.

P-town goes wild for the malassadas at this 87-year-old institution.

A mosaic map made of over 100,000 tiles depicts the geological features and sea creatures that live along this San Diego beachside community.

A luxury hotel constructed out of a former jail.

Germany's Glienicke Bridge has a shady history of clandestine meetings, espionage, and spycraft.

To make itself stand out in a city renowned for its numerous museums, this photographic archive resorts to immersively-themed exhibitions.

A street in front of NASA's D.C. headquarters has been named in honor of the Black women who were essential to early spaceflight.

This bridge over D.C.'s Rock Creek Park is sometimes called the "Buffalo Bridge" because of its four buffalo sculptures, which were cast from a single piece of bronze.

On the Fourth of July this area will transform into a Pompeii-like storm of falling embers and ash.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

Once a sewer culvert, this road tunnel now offers cyclists and pedestrians a subterranean stroll under the C&O Canal.

A derelict bit of infrastructure from the canal that once ran through D.C. is landlocked in the heart of the city.

Before Nixon, "watergate" meant canals.