Estonia is the smallest of Baltic countries and got the world attention back in 1994 when a ferry with the same name drowened near the country. 852 people died. Sayiling just a few weeks before with it between Stockholm and Tallinn and back again, I will allways remember her. Still ferry trips in the Baltic sea is a great way to get around. One of the best ways might be the route Tallinn-St Petersburg-Helsinki-Stockholm where you enjoy a day in each city. No visa required for europeans. The country it self is beautyfull with lots of nature and a cosy cities like Tartu