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

This bed and breakfast is steeped in history and offers guests a unique way to experience nature—glass igloos on a frozen lake.

Quality time with reindeer in the stunning scenery of their natural Lappish habitat above 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.

More than 200 eclectic sculptures surround the artist's home.

An old anti-aircraft cannon.

Atop this electronic store resides a massive fighter jet.

These historical landmarks stand as reminders of the evolution of animal care and conservation.

In the waters outside Helsinki, a tiny island once used as a military outpost now welcomes visitors.

The last surviving submarine from a strange chapter of Finnish history.

This church also serves as a lighthouse complete with a beacon.

The European Union’s tallest freestanding structure provides radio and television broadcasting to half of Latvia.

Abandoned museum from the last days of Soviet domination, with a unique Brutalist design.

Sweden’s legendary mine with wildly deep tunnels.

A solid steel plane designed to catch fire over and over again.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

This massive mural by famed pop-artist Keith Haring was hidden for almost 30 years until its 2018 rediscovery.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

Famed for its pie, this eatery has a hidden tunnel that allowed Catholics to secretly walk to church during the Reformation.

This cheese shop also houses a museum devoted to Dutch dairy.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

Widely advertised as Amsterdam’s narrowest street, this passage was once a highlight of the Red Light District before its windows closed.

The former headquarters of history's oldest megacorporation.