This Finnish town on the Arctic Circle is trademarked as the Official Hometown of Santa Claus.

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

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

A subterranean house of worship carved right out of the bedrock.

This statue in Civitavecchia recreates a famous photograph from the end of World War II in massive scale.

The famous sculptor had a hand in this imposing fortress.

A bridge to rival those in nearby Venice but without the crowds.

Medieval streets buried beneath a papal fortress now form an underground city you can walk through.

One of the oldest still-working clocks in the world sits on an ancient tower.

Wandering this ancient burial place offers a glimpse of the afterlife in the fresco-adorned tombs of an ancient Etruscan civilization.

What appears to be an ancient Roman temple is actually a Catholic church.

This bustling Italian plaza is built on the ruins of an ancient Roman amphitheater.

Frank Lloyd Wright’s most iconic home dangles over a Pennsylvania waterfall.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

A monumental golden thumb rises as an iconic homage to Nouveau Réalisme, bold in scale and unapologetic in spirit.

Hilltop monument to the victory of a new nation in the Franco-Prussian War.

Lines on the pillar of Heidelberg's Karl-Theodor Bridge record the dramatic heights of past floods.

World's largest barrel containing an inn.

The bones of the Biblical Magi traveled to Constantinople and Milan before landing in their current home inside an elaborate golden reliquary in the Cologne Cathedral.

Tiny castle in the middle of the Rhine made you pay to pass.

A memorial for a young woman and her ghost, which are claimed to have caused countless deathly shipwrecks.

This fountain of a little boy that spits on passersby at erratic intervals is a town icon.

Sitting in the basement of a castle, the largest wine barrel in the world is bigger than most apartments.

Legendary site where an evil bishop was devoured by rodents.