The gorge of Zemen and Polska Skakavitsa Waterfall near the town of Kyustendil.
The panoramic line of the narrow-gauge train between Rila and Rhodope mountains.
The less known mountain ranges of Slavyanka, Belasitsa and Osogovo mountains.
Strandza Mountains located near the Bulgarian Black Sea coast.
Overview on the Strandza Mountains, located in southeastern Bulgaria and partially in Turkey.