![The Belogradchik Rocks are a group of strangely shaped sandstone and conglomerate rock formations located on the western slopes of the Balkan Mountain Stock Photo - Alamy The Belogradchik Rocks are a group of strangely shaped sandstone and conglomerate rock formations located on the western slopes of the Balkan Mountain Stock Photo - Alamy](https://c8.alamy.com/comp/2PM2CAW/the-belogradchik-rocks-are-a-group-of-strangely-shaped-sandstone-and-conglomerate-rock-formations-located-on-the-western-slopes-of-the-balkan-mountain-2PM2CAW.jpg)
The Belogradchik Rocks are a group of strangely shaped sandstone and conglomerate rock formations located on the western slopes of the Balkan Mountain Stock Photo - Alamy
![Lakatnik Limestone Rocks by Iskar River Gorge in Balkan Mountain Stock Photo - Image of hook, gorgeous: 111294862 Lakatnik Limestone Rocks by Iskar River Gorge in Balkan Mountain Stock Photo - Image of hook, gorgeous: 111294862](https://thumbs.dreamstime.com/z/lakatnik-limestone-rocks-iskar-river-gorge-balkan-mountain-bulgaria-lakatnik-limestone-rocks-iskar-river-gorge-balkan-111294862.jpg)
Lakatnik Limestone Rocks by Iskar River Gorge in Balkan Mountain Stock Photo - Image of hook, gorgeous: 111294862
![Landscape with Hole in Rock of Balkan Mountains Stock Photo - Image of sightseeing, landscape: 270851728 Landscape with Hole in Rock of Balkan Mountains Stock Photo - Image of sightseeing, landscape: 270851728](https://thumbs.dreamstime.com/z/landscape-hole-rock-balkan-mountains-old-trees-grass-flowers-blue-sky-view-natural-attraction-balkans-dupni-kamen-270851728.jpg)
Landscape with Hole in Rock of Balkan Mountains Stock Photo - Image of sightseeing, landscape: 270851728
![Aerial View Rock Formation Stolo Ponor Mountain Balkan Mountains Bulgaria — Stock Photo © stoyanh #582769538 Aerial View Rock Formation Stolo Ponor Mountain Balkan Mountains Bulgaria — Stock Photo © stoyanh #582769538](https://st.depositphotos.com/1009979/58276/i/1600/depositphotos_582769538-stock-photo-aerial-view-rock-formation-stolo.jpg)
Aerial View Rock Formation Stolo Ponor Mountain Balkan Mountains Bulgaria — Stock Photo © stoyanh #582769538
![Incredible shapes of rock formations in the historical town of Belogradchik, Northwest Bulgaria, Balkan Mountains Stock Photo - Alamy Incredible shapes of rock formations in the historical town of Belogradchik, Northwest Bulgaria, Balkan Mountains Stock Photo - Alamy](https://c8.alamy.com/comp/2BETFPE/incredible-shapes-of-rock-formations-in-the-historical-town-of-belogradchik-northwest-bulgaria-balkan-mountains-2BETFPE.jpg)
Incredible shapes of rock formations in the historical town of Belogradchik, Northwest Bulgaria, Balkan Mountains Stock Photo - Alamy
![Aerial View Rock Formation Stolo Ponor Mountain Balkan Mountains Bulgaria Stock Photo by ©stoyanh 515633644 Aerial View Rock Formation Stolo Ponor Mountain Balkan Mountains Bulgaria Stock Photo by ©stoyanh 515633644](https://st.depositphotos.com/1009979/51563/i/1600/depositphotos_515633644-stock-photo-aerial-view-rock-formation-stolo.jpg)
Aerial View Rock Formation Stolo Ponor Mountain Balkan Mountains Bulgaria Stock Photo by ©stoyanh 515633644
![Fantastic sandstone rock formations on the western slope of the Balkan mountains in Belogradchik , Bulgaria. Rocks with fantastic shape Stock Photo - Alamy Fantastic sandstone rock formations on the western slope of the Balkan mountains in Belogradchik , Bulgaria. Rocks with fantastic shape Stock Photo - Alamy](https://c8.alamy.com/comp/2BEX9X1/fantastic-sandstone-rock-formations-on-the-western-slope-of-the-balkan-mountains-in-belogradchik-bulgaria-rocks-with-fantastic-shape-2BEX9X1.jpg)