A sinkhole and now a swimming hole, too, full of dazzling turquoise water.

This extraordinary geological oddity resembles human-made pavement.

Islanders once used this dramatic, otherworldly landscape to hide their cattle from Viking raiders.

The rich cultural heritage of the Kalasha people is on display in this state-of-the-art museum.

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

Order scoops of pandan, lychee, and black sesame at this family-run institution.

A WWI fighter plane and turn-of-the-century penny candy shop are among the unexpected features of this Financial District building.

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

A sprawling collection of over 106,000 toys from around the world.

A little barn in the middle of the city preserving Hollywood treasures since 1985.

Puzzles within puzzles hide a golden treasure in this hedge maze.

This Argentinian hedge maze is an intricate tribute to a famous surrealist author.

Fourteen curious and controversial white bunnies sit in a circle near Newport Beach City Hall.

A quirky collection of figurines backdropped by city views is hidden next to a popular restaurant in the Hollywood hills.

A playground built by the kids that is a child's wonderland, and a helicopter parent's nightmare.

The classic Atari game's iconic aliens have invaded downtown San Diego.

A pair of disused Los Angeles electrical poles now glow with delicate windows into the past.

A failed utopian experiment for British expats in the American South is now a Victorian village frozen in time.

This previously dilapidated alleyway has been transformed into one of Melbourne's finest hidden art locations.

One of Edinburgh's most popular works of street art is located well off the beaten path.

Vibrant paintings stretch across 600 feet of derelict railway.

The largest outdoor art gallery in the Northwest United States.

A former bank seized as a sniper vantage point during the Bosnian War is now a secret graffiti art gallery.

A regular looking rock with an unbelievable history.