This historic sunny-yellow building has an unfortunate connection to the sinking of the Titanic.

The only known Futuro house in North Carolina sits along a stretch of desolate highway on the Outer Banks.  .

An isolated island home to one of the oldest English-speaking communities in the region and Maryland's state dessert.

Time travel with sweets across history at this research-based candy store.

Captain John Smith thought these cliffs were amazing in 1608 but sharks thought so 20 million years before him.

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

This four-story steel sphere in Maryland was used to test biological weapons.

This tea house was a hand-built gift from Boulder's sister city in Tajikstan.

This limestone cave offers an incredible view of the Río Grande de Arecibo valley.

The world's second largest single-dish radio telescope, once used to contact E.T.

While most of the games in this arcade take quarters, that would have been a small fortune when they were made.

There are eight natural springs around town, each with a slightly different taste.

These faux-cliff dwellings allow visitors to climb around on a replica archaeological site.

This was once the home of Gahan's Saloon, Denver's most storied speakeasy.

This iconic science fiction house still looks like something from the future.

This underfoot portrait is the work of a disgruntled painter inspired by a tragic poem.

This statue of an obscure comic strip hero stands as a tribute to patriotic service and a cautionary tale about embracing fads.

The spot in the Mile-High City that's exactly 5,280 feet above sea level (at least for now).

The highest paved road in North America winds its way up Mount Blue Sky in Colorado to an altitude of 14,130 feet above sea level.

When zealous marijuana enthusiasts kept stealing the "Mile 420" highway marker, the State of Colorado got creative.

A downtown park built on top of unclaimed graves.

A relic of FDR's brief foray into utopian urban planning.

Remains of a historic fountain that was mysteriously lost in the demolition of a D.C. traffic circle.

This fort down the Potomac from Washington, D.C. was once the only defensive fort protecting the capital.