This hidden green space is the city's second largest conservatory.

A Dutch passageway's artistic, aquatic-themed makeover pays tribute to the capital city's famed waterways.

Eight naturally mummified bodies in glass coffins are housed in an underground crypt.

A 16th-century horror show built in a lovely Italian garden.

Beautiful tiles decorate many of the town's surfaces and stand testimony to its glorious artistic history.

A well-restored ancient archaeology site gives a real feel for life during the Roman age.

Hiding the longest subterranean river known in the world.

More than 5,000 artifacts donated by the people of the city, plus a room entirely devoted to the band U2.

The medieval town's star-shaped walls are geometrically dazzling, though not entirely impenetrable.

A Parisian exterminator's shop whose storefront displays stuffed rats hanging from traps.

This architectural beauty is the home to a personal collection of more than 600 examples of mechanical musical instruments.

Tiny memorials honor individual victims of the Holocaust.

Geothermal waterfalls in Tuscany.

A local tree surgeon has created a whimsical walk full of carved tree stumps near Scotland's Loch Lomond.

In a city that boasts four separate inclined cable railways, this is one of the busiest funicular lines in the world.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

The decaying remains of a 1960s mechanical wonderland that never officially closed.

A young Italian couple has been locked in an embrace for over 6,000 years.

A striking public sculpture representing the period of martial law in Communist Poland.

An 11th-century mountaintop fortress that played a crucial role in Italy's papal wars is now a vacation rental.

With the touch of a button, you can read a randomly selected short story.

"Stairs of the Turks", a chalky white cliff eroded conveniently into stairs, allowing for easy pillaging.

Local legend says the remains of Father Christmas lie within the medieval grounds.

This Irish show cave is said to have been the site of a Viking massacre that claimed 1,000 lives.