A small, but award-winning beach known for its literally spotless reputation.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.

The Sighignola summit on the Swiss border offers views so breathtaking it's been named one of the most beautiful places in Italy.

The only pollutant in the clear blue water is sunscreen.

A sulfuric martian landscape that looks far better than it smells.

A castle in the Scottish Highlands has been continuously inhabited since the 1300s.

Panoramic views of the city of New Haven and the Long Island Sound, with a side of history.

In addition to fine dairy products, the world's most beautiful milk shop also offers a feast for the eyes.

This 600-year-old home seems to defy physics.

A spectacular hidden beach in Ireland has the dark, disturbing nickname of "Murder Hole Beach."

This once-derelict building is now one of the most beautiful bookstores in the world.

Home to a vast and influential collection of Shakespeareana.

Few other hotels can rival the grandeur of the Castle in the Rockies.

A library where thousands of books explain how to avoid another Great Recession.

This one-time health resort was used by aristocrats around the world.

This picturesque view of the Scottish Borders was beloved by Sir Walter Scott.

A walkable map of the world, made from soil and stone by one man.

A open air theatre built on a cliff by an eccentric British woman.

David Sedaris called it "The greatest shop in the world."

Two monstrous faces loom over a village in Czechia.

An architectural marvel that spans the Arda River, and has stories of a haunted past.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

Large Hadron Collider and the Birthplace of World Wide Web.

This off-limits room in the National Library of France is home to a system of pneumatic tubes, once used to bring books to readers.