Bulgaria is located in Southeast Europe, bordered by Romania to the north, Serbia and North Macedonia to the west, and Greece and Turkey to the south. The country has a diverse landscape that includes mountains, plains, and a coastline along the Black Sea. The Balkan Mountains run through the center, while the Rhodope Mountains are found in the south. The climate in Bulgaria varies from continental in the north to Mediterranean in the south. Major rivers include the Danube, which forms part of the northern border, and the Maritsa, which flows through the south. Bulgaria's geography supports a variety of ecosystems and agricultural activities.