This tangled English forest looks like something right out of a fairytale.

A replica that won't float away.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

A museum of carnival attractions where you are invited to ride the rides.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

This secret collection of the strange and occult was rediscovered in a forgotten room of an old house.

This former factory has been transformed into a technicolor wonderland, where dozens of local artists have collaborated to create a real choose-your-own-adventure experience.

This beautiful Miami garden was designed as a laboratory for tropical plants.

360° views of the city plus five floors of optical illusions and hands-on science.

A 30-acre garden inspired by the principles of modern physics.

The most iconic structure in Scotland has been home to bishops, colonels, and Sean Connery characters.

The sign at the garden gate reads: "These Plants Can Kill."

These fantastically named natural pools look like something out of a Scottish myth.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

The mysterious, fantastical woodland inspiration for "The Lord of the Rings."

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

An unusual manor of stunning beauty, born out of a crippling disease.

No need to strap in for a "ride" on this walkable roller coaster.

A marble Lucifer hides behind the pulpit of this Gothic cathedral.

An eccentric garden of sculptures crafted in India decorate an Irish green space dedicated to Alan Turing.

A tiny microvalley etched into the side of Knocknarea Mountain hides another world.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

A whimsical and twisted animatronic monster tour beneath the streets of Berlin.

This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.