A cozy bookstore is tucked within an old gold mine shaft beneath the cafe and ice cream shop.

Giant Redwood-themed cafeteria operates under the golden rule, "Dine Free Unless Delighted."

Historic funicular railway, believed to be the shortest railroad in the world.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

A bomb shelter and some fireplaces are all that remain of the house Fred Roberts tried so hard to keep standing.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

New York City's only preserved family home from the 19th century.

Prove you deserve to be fed by Kenny Shopsin.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

This ruined fort hidden at the top of Central Park can't seem to keep from losing its historical plaques.

Peek through the gates at this oasis from the city, full of Old English charm.

Wall Street has a new heroine, a bronze statue of a small but fierce girl.

A DIY art gallery/music venue/lecture hall dedicated to video game culture.

This unmarked and unloved Manhattan subway grate created one of the most iconic images in American cinema.

Under a glass sidewalk lie the remains of some of Manhattan's oldest buildings.

The world’s oldest and biggest bookstore stocking only mystery, crime fiction, espionage, and thrillers.

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

Amid the bustle and noise of the Financial District hides a secluded garden oasis above the city streets.

A remarkable medieval structure born from a 14th-century disaster.

The ruins of the castle that chemicals built.

California's oldest wind harp represents a historic piece of America's Danish history.

Get up close to emus and ostriches, or buy their tasty meat.

A house built from trash known as the poor man's Hearst Castle.