Analysis of information sources in references of the Wikipedia article "Όλυμπος" in Greek language version.
Pirin mountain is comparable to the Swiss Alps and the most beautiful in Bulgaria. It is the second highest after the Rila mountain (in Bulgaria) and third in the Balkan peninsula (after the mythical "Olympus" of Greece with its Mitika peak standing at 2917 meters above sea level).
One of the longest-lived and most famous cultural festivals in the country takes place under the shadow of Mount Olympus, the highest mountain in Greece and the second-tallest in the Balkan Peninsula.