Since I don't know the country very well I will start off at Tallinn and let our Estonian friends take it from there:
http://upload.wikimedia.org/wikipedi...n_cityview.jpg
TALINN
Some streets in the Tallinna vanalinn (the Old Town) which is now a UNESCO's World Heritage Site:
http://upload.wikimedia.org/wikipedi...Altstadt01.jpg
http://upload.wikimedia.org/wikipedi..._Tallinn_6.JPG
On Toompea:
http://upload.wikimedia.org/wikipedi..._Toompea_3.JPG
The city wall:
http://upload.wikimedia.org/wikipedi...om_Toompea.JPG
A church - the Püha Vaimu kirik or Church of the Holy Spirit:
http://upload.wikimedia.org/wikipedi..._Estland_2.JPG