One of the foremost Sherlock Holmes collections is hidden away at a Toronto library.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

After it was swallowed by a Georgian mansion, this medieval castle remained forgotten for centuries.

Live data is transmitted from the Atlantic coast to instantly recreate the ocean waves in this fountain at the NOAA headquarters.

This secret gem of a toy store houses a rideable carousel populated with fantasy animals.

Thousands of majestic trumpeter swans fill this park, sounding distinctly like a certain brass instrument.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

One of the world's most complex timepieces.

Built in 1933, this unique ballroom is nicknamed the "floating dance floor."

Alaska Natives have lived on this tiny isolated island in the Bering Strait for over 5,000 years.

This line of 12 tower mills described in the story of Don Quixote is among the most iconic landscapes in Spain.

A solitary lighthouse in Spain was an inspiration to the great Jules Verne.

A nun spent 16 years painting the stunning Celtic mural that covers the interior of this WWI memorial.

Once a menacing challenge for trailblazers, this trail is now the most scenic drive in Utah.

Four-story slides send people whizzing through the math department at this Munich university.

Restaurant in Northern Wisconsin comes with a unique feature: a grassy roof covered in living goats.

A stone marker memorializes the spot where the King broke up a street fight with a classic karate stance.

Thanks to a clever legal loophole, this mountainside wine shop sells a hybrid cuvée that's been outlawed for nearly a century.

This tiny museum's sizable collection is jammed into a former underground public toilet.

These upturned herring boats make nifty storage sheds for fishing goods.

The weathered grave of a medieval anchoress who walled herself up in a cell attached to a church.

This hidden workshop is filled with molds of France's most iconic sculptures.

This sprawling bookstore spans four floors and has more than a million books in stock.

A hidden three-foot-wide house separates these two regal churches.