Two hand-built octagonal smoke saunas open every Friday on the grounds of a former wartime headquarters, within a UNESCO Global Geopark, in one of Finland’s least-visited corners.

This island castle now hosts a world-famous opera festival.

The local club's soccer field is practically surrounded by UNESCO-protected monuments.

An abandoned textile factory on the "island of crows" was home to Estonia's first workers' strike.

This Soviet-era "closed town" was a top secret uranium producer often left off of maps.

These Finnish rapids have been attracting tourists for over a hundred years and are now released with the push of a button.

Fortifications built for a Soviet invasion that never came now sit abandoned in a losing battle against nature.

Sculptures of dinosaurs, trolls, and other beasts carved with chainsaws guard Finland's largest arboretum.

Visit Finnish architect Matti Suuronen's first UFO-shaped home.

Every summer, an open-air swimming pool appears at the base of a Finnish city's beloved winter attraction.

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.

Menacing or in memoriam, the Silent People and their meaning are left to interpretation.

An abstract monument to a symphonic composer.

Legend has this precariously placed rock was placed by giants. Science has another explanation.

Architecturally stunning library serves as the hub of Finnish scholarly life and culture.

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

Rent out a glass igloo to watch the Northern Lights like you live in the future.

The church's remarkable frescoes incorporate Finnish artist Hugh Simberg's trademark themes of death and the supernatural.

Collection of nearly 500 concrete figures sculpted by the late Veijo Rönkkönen.