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

"There's nothing there," and other lies the KGB told us.

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

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

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

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

The tiny, studious rodents greet visitors to the National Archives of Finland.

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

This fantastical icy castle is built anew every winter.

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

Swedish skyscraper with a 90° twist.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

This chimerical bridge/tunnel appears to dead end right into the sea.

The discovery of an old wall led to the creation of this fascinating museum about the city in the Middle Ages.

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.

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

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

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

This "witch's market" is filled with Amazonian herbs, remedies, and the occasional libido-strengthening tincture.

Uganda's smallest savannah park is home to over 350 species of birds and mammals.

Where the White Nile River dramatically cascades between Lake Kyoga and Lake Albert in Uganda.

For patriotic Russians, this memorial honoring the Soviet soldiers who died liberating Berlin in 1945 is the most sacred location outside of Russia.

The Bauhaus-style former industrial complex is considered the world's most beautiful coal mine.

This platform is now a memorial dedicated to those who were deported during the Holocaust.