A formerly glacier-tipped volcano that inspired none other than Jules Verne.

One man's exploration of the human form, including the bizarre and delightful "Man Attacked by Babies."

The world's first ice hotel is still one of the most elaborate and beautiful.

The world's largest model of our planetary system.

A miniature city, once ruled by the Queen of the Netherlands.

Thousands of coffin-like pillars make up this controversial Holocaust memorial.

Neo-cave art on the macro scale.

This imposing memorial contains the remains of Che Guevara — and 29 other guerrillas who died with him in Bolivia.

This subterranean disco dance club in a Cuban cave comes with bright lights and a dark legend.

An old slave lookout in Cuba's historic sugar cane fields.

Once a favorite playground for the world's most illustrious guests, Hotel Nacional's secret weapons and bunkers reveal a more menacing side to its golden history.

Cuba's historical trains remind natives of their country's sugary sweet past.

In terms of history and architecture, this is one of the most remarkable cemeteries in the world.

His music once banned in Communist Cuba, John Lennon is now immortalized in bronze by Castro, who considers Lennon a "fellow dreamer."

A Spanish-style estate that has traded black ties for rock concerts.

A bronze sculpture of Lenin’s likeness outside Havana surrounded by 12 human figures in solidarity with the Bolshevik Revolution.

After the Cuban Revolution, the famous rum company had to leave their swanky headquarters behind.

A focal point of the Cuban government, this city square features one of the most iconic images in the country.

The library's graceful rotunda is like a bibliophile's temple.

In the town of Åtvidaberg, the midday sun sets off a loud cannon boom.

This roundabout was renamed in honor of the Swedish king's royal fender-bender.

Go inside to really appreciate this 500-year-old technological masterpiece.

This community on a small Venetian island has taken to painting their houses in bright neon hues.

No one knows who's responsible for decorating this tunnel with stuffed animals, but the people love it enough to protest their removal.