One of the newest mosques in a city filled with thousands.

The ancient abodes are a testament to human ingenuity amid harsh climates.

This hunter-gatherer architecture is believed to be the oldest religious complex known.

A sacred lake with thousands of sacred carp and a biblical history.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

An abstract monument to a symphonic composer.

Finland's oldest astronomical observatory once played a crucial role in seafaring and timekeeping.

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

An alien church provides much needed silence in the midst of a Finland shopping center.

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

This striking memorial is one of Estonia’s most controversial Soviet leftovers.

Relics from an era long gone, sit idle outside this Estonian museum.

A spectacular Petrine Baroque summer palace commissioned for Catherine I by Peter the Great.

Disused seaplane hangar gets a second life as the jaw-dropping home of Estonia's museum of maritime history.

A former imperial sea-fortress and Soviet prison.

An empty relic of the Moscow Olympics crumbles away in Estonia's capital.

A unique sculpture calls the outside of this steakhouse home.

Estonia's largest creative city is a vibrant bohemian hub located within a former industrial complex.

This medieval Estonian tower provides access to a series of tunnels that have been home to soldiers, punks, and fine art.

The Guardian of Tallinn.

The oldest continuously operating pharmacy in Europe.

This controversial monument was designed to lionize the Red Army, but also disheartened the Latvian people.

Latvia's symbolic mountain-shaped national library is home to millions of cultural tomes.

The reconstruction of this prominent building fulfilled a long-written command.