List of the busiest airports in the Balkans
The following list is for all of the countries to occupy Balkan territory with the exception of and , the information contained is for all airports on those territories.
Sometimes the European part of is considered part of the Balkan Peninsula. The Istanbul Atatürk Airport is located there. It had 67,981,446 passengers in 2018, placing it on the top spot in the list. The ( ) Romanian airports that are considered to be on the Balkan Peninsula are Mihail Kogălniceanu International Airport in Constanța and Tulcea Airport in Tulcea. They have respectively 129,235 and 158 passenger traffic.
Balkan Mountains
Geologically, the Balkan Mountains are a "young" part of the Alp-Himalayan chain that stretches across most of Europe and Asia. It can be divided into two parts: the main Balkan Chain and the Pre-Balkans (Fore-Balkan) to the north, which intrude slightly into the Danubian Plain. To the south, the mountains border the Sub-Balkan valleys - a row of 11 valleys running from the Bulgarian border with Serbia east to the Black Sea, separating the Balkan mountains from a chain of other mountains known as "Srednogorie" which includes Vitosha and Sredna Gora.