Bulgaria is located on the Balkan peninsula on the Black Sea. Bulgaria borders Romania, Serbia, Macedonia, Greece and Turkey. Bulgaria has a population of 7.5 million people. The capital of Bulgaria is Sofia. Great monuments in Sofia are: St. George Rotunda, Sveta Sofia Basilica, Alexander Nevsky Cathedral and the Boyana Church (on the list of UNESCO world heritage). Other tourist attractions are the Church of Sveta Nadelya, Banya Bashi Mosque with Turkish baths, Synagogue, the National Historical Museum, Sveta Petka Saamardzhiska Church, the Russian Church, the Alexander Batenberg Square, the flea market, antique shops and cafes around the Crystal Square. Other major cities are Varna, Burgas, Plovdiv and Ruse. Bulgaria is emerging as a strong tourist destination. Especially the hotels and resorts on the Black coastline are popular, the so-called Rozenvallei whose main centres Karlovo and Sopot with their natural beauty. Albena is the most complete tourist resort at the Black Sea. Also as winter sports destination Bulgaria is becoming more popular.