The tunnel under the Capitol Building where Congress takes out its trash.

The U.S. Navy’s preposterously detailed mini battleship took 77,000 hours to complete.

Atop this media building, two hives containing more than 30,000 bees keep the surrounding area vibrant.

An overlooked tribute to one of the most important peace deals in American history.

The innocent intentions of this monument are somewhat lost in the sculpture's muscled imagery.

A secret greenspace hides atop a Capitol parking garage.

The first memorial dedicated solely to the Black troops who fought for the Union.

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

The iconic statue was moved to a new spot overlooking the James river after several years as a mascot for the local baseball team.

This museum devoted to the gothic author holds such interesting ephemera as his socks and walking stick.

This beautiful vintage movie palace has seen little change in form or function since the 1920s.

This 29-ton granite ball spins around at the slightest touch thanks to a scientific phenomenon.

A genuine Tudor manor transported piece by piece from England.

Inspired by a foil-wrapped potato, (seriously) the Markel Building has been deemed one of the 10 ugliest buildings in the world.

Giant disc-shaped gate took 20 men to close off this city in Madagascar.

This picturesque island graveyard is the final resting place of dozens of notorious pirates.

Fabulous formations, weird and wonderful wildlife.

The centuries-old trees lining both sides of this dirt road may become Madagascar's first natural monument.

This small island was the first National Wildlife Refuge ever created in the United States.

The ruins of this antebellum sugar plantation are the end result of a Seminole attack during the Florida Wars of 1836.

An 18th-century Spanish watchtower made entirely of seashell and concrete.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

It's a pretty creepy lock-up.

Location of a reliquary containing bone fragments of 18 saints.