What is Transylvania surrounded by?

Transylvania is surrounded by the Carpathian Mountains to the east and south, creating a natural barrier. To the north, it is bordered by the Eastern Carpathians, while the Apuseni Mountains lie to the west. The region is primarily located in Romania and is known for its picturesque landscapes and rich cultural history. Additionally, Transylvania is surrounded by various valleys and plateaus that contribute to its diverse geography.