Royals, rebels, and artists have all conversed at this grand 19th-century Viennese coffee house.

For 14 years, this former stray dog greeted every train passenger that arrived in Fort Collins.

In the basement of the U.S. Capitol Building is a hidden storage room full of ornate floor tiles leftover from the 1850s.

After his presidency, George Washington planned to live only a few blocks from the Capitol building.

The elevator that makes it possible to fly American flags in bulk over the U.S. Capitol

The last remaining location of a drive-up hot dog stand named after a local pool shark.

A miniature representation of Canadian cities and landmarks in incredible—and sometimes hilarious—detail.

A terrace reminiscent of Rome's Spanish Steps is tucked away in a little park in Washington, D.C.

Before he was "Bob Marley, international reggae superstar," he was "Donald Marley," a Delaware resident and forklift operator working under an assumed name. This park tells the story.

An amateur telescope-making club has been gathering at this Vermont site for more than a century.

This tree is a living witness to the beginning of the Civil Rights Movement.

What if the Fountain of Youth was actually found in Delaware? One historic coastal town believes it to be true.

An underground world of gorgeous, palatial metro stations designed as a nuclear shelter complex.

Prowl through this sprawling bazaar under a massive Soviet-era dome for delicious eats.

The grounds of former plantations where abolitionist Harriet Tubman spent her youth enslaved are now a museum to her incredible life.

A unique museum that uses visual art and storytelling to reveal the hidden history of the Gullah Geechee and their African ancestors.

P-town goes wild for the malassadas at this 87-year-old institution.

The only Leonardo Da Vinci painting in the Western Hemisphere.

The remains of Abó, Gran Quivera, and Qurai are monuments to the long, complicated history of the Indigenous people of the Southwest.

Home to fossils and other specimens from the Western Interior Seaway.

The ruins of the northernmost pueblo in the Americas tell the story of a mixing of native cultures.

A stone marker and sculpture in the city of Riga stake a claim for the very first community Christmas tree.

Board a mine car and descend the #190 slope 300 feet underground into the Clark Vein of coal.

The train collection of an eccentric New England seafood mogul is now a National Historical Site.