Estonia Animal, Downtown, Historical + Museum Pictures

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See this eerie abandoned old 19th-century fortress and prison, which would have held political prisoners during the decades of Soviet rule.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

See how this commercial hub grew, with a look at its complete, preserved historic center near the trade routes of the Baltic Sea.

Book in for a guided tour of this fascinating functioning hotel, which was used as a base by KGB operatives during the Soviet era.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

See this eerie abandoned old 19th-century fortress and prison, which would have held political prisoners during the decades of Soviet rule.

Book in for a guided tour of this fascinating functioning hotel, which was used as a base by KGB operatives during the Soviet era.

See this eerie abandoned old 19th-century fortress and prison, which would have held political prisoners during the decades of Soviet rule.

Enjoy the panoramic view from the rooftop and admire the sleek architecture of this gallery, which showcases contemporary Estonian art.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

Discover ocean-themed displays at this interactive museum, where exhibits are spread across a 16th-century cannon tower and a vast converted seaplane hangar.

See how this commercial hub grew, with a look at its complete, preserved historic center near the trade routes of the Baltic Sea.

Gaze up at the onion domes, hear the powerful bells and admire the imaginative stained-glass windows of this magnificent landmark.

See Viking ships, a seaplane and a shipwreck, and snoop around the cramped quarters of a 1930s submarine at this maritime-themed museum.

Book in for a guided tour of this fascinating functioning hotel, which was used as a base by KGB operatives during the Soviet era.

Gaze up at the onion domes, hear the powerful bells and admire the imaginative stained-glass windows of this magnificent landmark.

Erected in honor of the victims of a sunken Russian ship, this iconic statue depicts an angel looking out toward the Baltic Sea.