Australia's largest traditional hedge maze features a Great Gnome Hunt.

Built over an abandoned train yard, this hidden gem is full of winding paths and offers gorgeous views of Sydney Harbour.

This gracefully curving formation looks like a massive wave that was suddenly turned to stone.

An abandoned railroad tunnel is now filled with bioluminescent bugs.

A museum dedicated to linguistics, from how babies learn to talk to endangered and extinct languages.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

Abandoned railway line circling the city of Paris.

World's largest permanent maze made of 18,000 conifers.

A breathtaking bridge that crosses a vast gorge over a river's torrents, and has a tale of a devil architect attached.

Locals transformed this Canadian evergreen into a secret hangout with spectacular views of Vancouver's skyline.

This Elizabethan hedge maze is one of only six in North America.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

A discreet little stairway on St. Nicholas Avenue leads to a quaint and unexpected cobblestone street of 19th century wooden rowhouses.

The name of this tiny pocket park tucked between two buildings on Manhattan's Upper West Side is Latin for its location: "seventy-one."

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

During the holidays, a vintage subway train whisks New Yorkers back in time.

The oldest surviving bridge in New York City, which reopened to pedestrians in 2015.

One of only two commuter aerial tramways in the United States.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

Painstakingly built dioramas sit unnoticed in a Boston office building.

After years of slow decline, a derelict Gothic castle is now being restored to life.

A hermit's tiny cell built into the cliffside that saved him in South Pembrokeshire.

A rocky sea serpent hides caves, blowholes, and a spectacular natural bridge.

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