Order the extra snappy, steamed hot dogs at this fourth-generation-run New England diner.

One of the three perfect vellum copies of this historic book known to exist is on display in a specially-designed case.

This church built atop a gas station promises to "equip you for the next stage in your life’s journey."

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.

A gift from Japan, 17th-century lantern stands among the cherry trees at D.C.'s Tidal Basin.

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

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

D.C.'s first central library was born out of a chance encounter with the philanthropist whose name it bears.

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.

Obscure Freemasons still live in D.C.’s largest private residence.

A colossal statue with a controversial past, forgotten for more than 30 years.

The largest masonic lodge in Cuba.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

Castro's communist ice cream mothership has been serving five-scoop "salads" for over 50 years.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

No one knows the meaning behind this giant sculpture of a nude woman with a fork riding a rooster in Havana.

This statue in Plaza San Francisco commemorates a beloved figure from 1950s Havana.

66,000 pieces of art, donated by one of the world's richest men.

The collection of intricate sculptures includes one carved from a mammoth's tusk

In Chapultepec Park there is a pavilion gifted to Mexico from South Korea to honor the 1968 Summer Olympics.

Dating back to the second century, vestiges of prehispanic mural paintings are found in this underground palace.

Gilded heaven for philatelists and architecture freaks, still in full working order despite sitting atop tremulous ground.