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

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

The city that saw the birth of Sweden is now home to an impressive collection of work from its favorite artist.

Every Tuesday, students let off steam by screaming into the night air.

A golden plaque marks the site of the mysterious unsolved assassination of the former Swedish prime minister.

It is said that each of the white stones in the red facade of this medieval house represents the head of a murdered Swedish noble.

The scars of a remarkably organized public protest to save 13 elm trees are still visible in this Stockholm park.

18th century opera in its original splendor.

Stockholm's deepest subway station is also a stunning ecological wonder.

An ancient Viking runestone hidden in plain view in Stockholm's old town.

Now a hotel, this former bank was the site of a robbery that spawned a psychological phenomenon.

Sweden's "good old days" painstakingly re-created in a model village.

The library's graceful rotunda is like a bibliophile's temple.

It houses the remains of a 17th-century version of the Titanic.

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.

A secluded art gallery hidden within the cellars beneath Tallinn’s medieval monastery.

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

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

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

The ruins of an Estonian prison are drowning in the quarry lake where the convicts were once forced to work.

This soviet pilot's graveyard is filled with headstones made of airplane fins.

The Guardian of Tallinn.

This dizzying tower was built to better broadcast the 1980 Moscow Olympics.