Riga was given the distinction along with Faro (Portugal), Amsterdam (the Netherlands), Crete (Greece) and Barcelona (Spain).
In describing Riga, the web-site mentioned that ''Eastern European cities are the perfect way to enjoy a historical trip cost affordably''.
The article states that Riga terraces are filled with locals simply enjoying the long summer evenings; also the 800-year-old cobbled streets decorated in the Baroque style, the golden sand and the excellent spa and resorts in Jurmala are mentioned.
http://www.businessinsider.com/the-top-five-european-cities-for-summer-travel-2011-7
