A prohibition-style speakeasy takes up residence in the last Victorian residence in Hollywood.

Ninety feet off the valley floor is an ancient dwelling put under protection of the U.S. government by Teddy Roosevelt.

A taste of the macabre Tokyo's ritzy shopping district.

Banksy gives themself artistic license with this piece of London street art.

The fairy tale castle of the "fairy-tale king."

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

Medicinal spa created with the discharge from a geothermal energy plant.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

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

Explore the largest pure gypsum deposit in the world, and go dune sledding while you're at it.

Under the right circumstances, this waterfall in Yosemite briefly turns a luminescent fiery orange.

The land is full of geologic eye candy, such as otherworldly spires, mushroom-shaped hoodoos, and prehistoric fossils.

This lower Manhattan bar is set up in an old bank vault that rests beneath a skyscraper that hides even more historic splendor.

The only swimming pool listed on the National Register of Historic Places is emptied and refilled each day with naturally filtered water.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

A layered tribute to the work of mosaicist Isaiah Zagar.

This abandoned subway station beneath the Waldorf-Astoria hotel is allegedly used to secretly transport presidents.

Dodge prohibitionists and slide through the telephone booth in Crif Dogs.

These remote Florida islands have a history of sea turtles and sunken treasures, and one of the world's largest coastal brick fortresses.

The world's only museum devoted to the wonders of fluorescence.

This secluded aqua waterfall in the Grand Canyon is the perfect swimming hole, and the Havasupai tribe's fiercely protected natural wonder.

The oldest family-run luncheonette in New York, last renovated in 1948, still serves food and drinks the old-fashioned way.

An immersive environment that is part haunted house, part choose-your-own-adventure, and part jungle gym.

This shop and gallery is a modern-day cabinet of curiosities, unassumingly positioned along an urban thoroughfare.