Vines grow up the metal bars in this public park created from an old machine factory.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

The world's largest solar furnace uses 10,000 mirrors to concentrate the sun's rays to generate power.

Trek into the depths of the cave where 17,000-year-old paintings exist alongside 400-year-old graffiti.

The pristine waters crossing this forest form a hidden waterfall among the dense vegetation.

An omelette made with over 1,000 eggs may have been prepared when Holy Roman Emperor Charles V visited this monastery.

Just saying the name of this town out loud is said to bring bad luck.

The sunlight passing through the opening of this huge cave system creates a magical effect.

This Venice bookstore has resigned itself to constant flooding by keeping its books in bathtubs and boats.

This kitsch eatery is chock-a-block with bric-a-brac.

The history of the traveling carnival is remembered by this sprawling collection of vintage wagons, games, and rides.

A luxurious 1880s hotel with its fair share of Tiffany stained glass, Edison electricity, and of course, ghosts.

In Florida, these naughty monkeys live on their own mini-monkey Alcatraz.

The humble home where the famous beat author lived briefly and wrote one of his most famous works.

Town of spiritualists and mediums in Florida.