I've never been there, but from what I understand, they love folk music, and kids learn to program in primary school. Sounds like a wonderful country. Also the home of Skype. Not to be underestimated.
There are a few startups that have been started by Skype alumni in Estonia. Transferwise as mentioned above is one. Another is https://lingvist.io. Another which is dual homed in Estonia and Palo Alto is http://teleport.org.
I went to Tallinn for the first time in 2002 before it was part of the EU. I took the ferry from Helsinki and spent the day walking around the old town. Quite enjoyable. Two things that really stood out were - internet cafes were readily available and extremely cheap (under $2/hour from what I recall) and the beer was cheap :)
I have since been there a handful of times while I was at Skype - unfortunately I never did make it outside of Tallinn.
The 2 majority founders were swedish and danish, but the 4 Estonian founding engineers had a significant stake from day one. The same team of swede, dane and estonians had developed Kazaa and Joltid together before.
