The famous abolitionist’s preserved estate is one of Washington's finest monuments to its great Black citizens.

A super-sized promotional trick that is now a D.C. landmark.

This small group of sand dunes manages to pack in a strange rainbow of colors.

At the center of an island in the middle of the Indian Ocean is a deep chasm ringed by tall waterfalls.

Dive into an undersea optical illusion off the coast of Mauritius.

A morbid piece of memorabilia from the most famous shipwreck in current history is just one of the many poignant artifacts in this Canadian museum's collection.

Dubbed the "Blade Runner dragon," this buzzing neon sign is a beloved local icon.

Jail from the 19th century that was built by inmates.

An Egyptian-revival style film house in Boise, Idaho.

One of America's largest retail chains got its start in one of its most remote rural destinations.

These giant metal horses graze on a hilltop near the Montana highway.

A quirky roadside sign was the subject of a years-long legal standoff over highway right-of-way clearances. 

While not recognized by Guinness, this chocolate waterfall is likely to be the world's largest.

A suburban street in Anchorage doubles as a runway, and each home has its own airplane hangar.

Considered by many to be one of the most dangerous highways in Alaska.

The now-serene site of the largest earthquake ever recorded in North America.

Large one-man sculpture park in Michigan.

As its grandiose name implies, this wooden dome is unsurpassed in size.

"The Most Boring Road in the State."

A monument to the military service of America's greatest traitor refuses to even name him.

Two mermen, eternally spitting into each other's mouths.

Where else would a linchpin of post-colonial Native American cuisine anchor the menu but a museum?

This historic building provides a powerful glimpse into the lives of Japanese Americans forced to relocate during World War II.

Though strikingly beautiful, Seattle's other railway station is now largely forgotten.