Finland's northernmost zoo is home to the country's only polar bears.

These enormous, stern-faced statues greet visitors with lanterns, and sometimes costumes.

Roughly 17 million letters to Santa have found their way to this Arctic Circle post office.

If you visit Santa's village, you can get your passport stamped to show you crossed into the Arctic Circle.

During the Soviet era, the spire of this longstanding church was used as a radio transmission tower.

Straight out of a nightmare, barcode-faced babies climb up and down Prague's television tower.

The slender brass strip in Prague's Old Town Square was used to tell time from 1652 to 1918.

Looming communist pillar with a Czech twist.

A turn of the century building boasting some of the most beautiful art nouveau architecture in Prague.

A mocking tribute to the past and modern leadership of Prague.

What looks like a suicide in progress is actually a statue of Sigmund Freud.

Beneath an ancient wishing tree lies an underground chapel with 12th-century frescoes and catacombs dedicated to a lady saint.

Legend holds that St. Paul was flogged for preaching Christianity at this pillar.

The ruins of a fifth-century church dedicated to Our Lady of the Harbor.

An ancient necropolis of magnificent tombs.

The ancient mosaics here are considered among the finest in the world, and serve as a stunning record of Greco-Roman daily life.

A World War II evacuation tunnel turned into a history display of Croatian state and people.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

A statue of Paulina Hermann, the eccentric noblewoman known as the "mother of cats."

This ancient theater, restored in the 20th century, lives on as a venue for dramatic and musical performances.

This building has two facades of clashing architectural designs.

"Holy Wisdom" overlooks the city that became its namesake.

A vast Communist-era exhibition space in the Bulgarian capital.

A striking symbol of the Bulgarian capital.