The spot where the fascist dictator made some of his most famous speeches including declaring war on Britain and France.

Barcelona's only remaining tram system takes riders to the Tibidabo funicular.

Shop for books in the New Orleans house where William Faulkner once lived.

Parts of the civil rights movement unfolded in this historic eatery, helmed by the "Queen of Creole Cuisine."

Originally a brothel during the Klondike Gold Rush, this bar once used dolls to denote when ladies were working.

These Pre-Columbian petroglyphs contain representations of birds, deer, hunters, and even some early Native flute players.

Where a brain, a beauty, a jock, a rebel, and a recluse met one Saturday and changed their lives forever.

This massive stained-glass masterpiece is thought to be the largest Tiffany dome in existence.

This North Carolina store preserves a historic moment in America's movement for racial equality.

More than 2,000 species of tropical plants call this nature preserve and sanctuary home.

The famous aviator's final resting place is a study in natural beauty.

This black shoreline is made up of exploded lava particles.

The actual model from the original "Star Trek" series is now on display at the National Air and Space Museum.

The 5.5-mile ring of steel posts around the Capitol Building is one of the largest (and most uniform) of its kind in the world.

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

Corn-inthian columns with a uniquely American take on neoclassical architecture.

This unique museum cafeteria showcases the history and regional diversity of African American cuisine.

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

While most wind tunnels test scale models, the "Cave of Winds" was large enough for actual airplanes.

There’s a special club house at the top for the bell ringers.

This robust fence in front of a historic Georgetown home is likely made from hundreds of recycled Revolutionary War firearms.

Washington's iconic carousel has a nice piece of Civil Rights history.

Go take a picture with the inventor of the daguerreotype photographic process.

Those with a sharp eye can find the hidden image of a German Shepherd on the memorial's Mural Wall.