Bulgaria, General, Effect of acid rain on forest.

Bulgaria, Nessebar, Saint John Aliturgetos Church.

Bulgaria, Nessebar, Saint John Aliturgetos Church.

Bulgaria, Nessebar, Saint Nicholas Monument.

Bulgaria, Nessebar, Saint Nicholas Monument.

Bulgaria, Nessebar, Hagia Sophia Basilica, also known as St Sophia Church and The Old Bishopric.

Bulgaria, Nessebar, Christ Pantocrator Church.

Bulgaria, Nessebar, Christ Pantocrator Church.

Bulgaria, Nessebar, Arch and walls, Hagia Sophia Basilica, also known as St Sophia Church and The Old Bishopric.

Bulgaria, Sofia, a bronze and gold statue which is the symbol of the city.

Bulgaria, Sofia, National Assembly Building.

Old hill town houses