This dilapidated ship carcass covered in trees is a striking sight.

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

The only Leonardo Da Vinci painting in the Western Hemisphere.

The remains of Martha, the last known passenger pigeon, serve as a tool to educate about conservation.

The 28,000-year-old specimen is remarkably intact.

A gorgeous mural outside a beloved D.C. restaurant pays homage to famous Black Americans.

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

Engraved in stone here are the signatures of everyone who signed the Declaration of Independence.

The Lincoln Memorial has inspired many, even though a word on the inscription appears to be spelled incorrectly.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

Light bulbs, scrap wood, and tinfoil comprise this homemade throne of the gods.

Look closely and you’ll notice that the color changes a third of the way up the tower.

Home to the only outdoor municipal elevator in the United States.

The cavern’s main chamber is so vast that the Statue of Liberty could reportedly fit inside it.

The final resting place of one of the most sensational guitar players of all time was created only after his father got the rights to his music.

Memorial commemorating the deadliest landslide in U.S. history.

This large artificial waterfall in Washington state was merely an incidental byproduct of a technological megaproject.

An early 20th-century fruit warehouse home of an artistic and cultural renaissance in northeastern Washington.

This natural wonder is disappearing at an alarming rate.

With a floor made of thick glass, this observation deck offers a full view of Sunwapta Valley's mountains and rivers.

A surviving remnant of the thick ice mass that once mantled most of Western Canada's mountains.

A wonderful museum on the site of the historic Black Bear Mine on the back of Red Mountain.

This house was largely built out of hundreds of thousands of discarded glass embalming fluid bottles.