Historic Old Town, Tallinn
http://whc.unesco.org/en/list/822 https://en.wikipedia.org/wiki/Tallinn
Alexander Nevsky Cathedral, Tallinn
https://en.wikipedia.org/wiki/Alexander_Nevsky_Cathedral,_Tallinn
...because it was a KGB listening post. The hotel rooms were all bugged
http://www.atlasobscura.com/places/kgb-museum
Tallinn Port
A NSFW statue in central Helsinki
https://en.wikipedia.org/wiki/Three_Smiths_Statue
Uspenski Cathedral
https://en.wikipedia.org/wiki/Uspenski_Cathedral,_Helsinki
Helsinki Cathedral
https://en.wikipedia.org/wiki/Helsinki_Cathedral
Helsinki Central Railway Station
https://en.wikipedia.org/wiki/Helsinki_Central_railway_station
A city park in Helsinki
Old Soviet-era military building at Paldiski, on the Baltic Sea coast
https://en.wikipedia.org/wiki/Paldiski
St. Catherine's Church, Muhu Island
https://en.wikipedia.org/wiki/Muhu_St._Catherine%27s_Church
Angla Windmills, Saaremaa Island
https://en.wikipedia.org/wiki/Saaremaa
Old barn, Saaremaa Island
https://en.wikipedia.org/wiki/Saaremaa
Butterfly near 59 Degrees North, 24 Degrees East
Kuressaare Castle, Saaremaa Island
https://en.wikipedia.org/wiki/Kuressaare_Castle