Sofia Synagogue - Credit: Wikimedia Commons
The Sofia Synagogue (, Sofiyska sinagoga) is the largest synagogue in Southeastern Europe, one of two functioning in Bulgaria (with the other one in Plovdiv) and the third-largest in Europe.100-годишнина на синагогата в София, dnes.bg, September 6, 2009 Read more on Wikipedia
Source: en.wikipedia.org