Ustra Fortress, Medieval fortress ruins in Kardzhali, Bulgaria
Ustra Fortress stands on a rocky hilltop in the eastern Rhodope Mountains, featuring defensive walls and three towers that command the landscape. The site contains remains of eight buildings in varying sizes with stone staircases and underground spaces that once served as storage areas.
The fortress originated in the 10th century under Constantine VII and changed hands repeatedly between Byzantine and Bulgarian rulers. Ottoman forces took control in the 14th century, marking the end of its role as a major defensive position.
This fortress served as a crucial outpost where Byzantine and Bulgarian communities coexisted, leaving traces in its construction style and found objects. Local people adapted the space to defend their territory and maintain trade routes through the mountains.
Two climbing routes lead to the fortress, one from the village of Lebed offering an easier path and another from Ustren with information markers. Wear sturdy shoes as the ground is uneven and the ruins are fully exposed on the hilltop without shelter.
Excavations in the 1970s unearthed over 1,000 artifacts including iron arrows, bronze crosses, and silver coins spanning multiple periods. These discoveries reveal that the site remained continuously inhabited and used for an extended time span.
Location: Kardzhali
GPS coordinates: 41.47013,25.22580
Latest update: December 8, 2025 21:02
Dyavolski most
19.2 km
Kardzhali Reservoir
21.4 km
Orlovi Skali
12.6 km
Arena Arda
22.9 km
Vishegrad Fortress
22.3 km
St. John the Precursor Monastery, Kardzhali
21.2 km
Budali Hodja Tekke
22.8 km
Dazhdovnitsa rock niches
25 km
Скално-култов комплекс с.Бенковски
9.9 km
Regional Museum of History
23 km
Aladag
8.3 km
Il kaya
1.8 km
Гъбата – скално образувание
9.8 km
Church of the Assumption
15 km
Krivus
24 km
Друмче
21.9 km
Fotinovo Turtles
14.7 km
Скално-култов комплекс
18.2 km
Kardzhali mosque
22.6 km
Saint George Church
14.8 km
Stanka Dimitrova Art Gallery
22.5 km
ДАР
22.8 km
Kyuchuk Beyug Kazan
24.5 km
Свети Цар Борис І Покръстител (Момчилград)
16.6 km
Dimitar Dimov Theatre and Music Center
22.3 km
Народно читалище „Иван Вазов-1999“
24.1 km
Adam kaya
23.5 km
Mithras relief at Thermes
23.6 kmVisited this place? Tap the stars to rate it and share your experience / photos with the community! Try now! You can cancel it anytime.
Discover hidden gems everywhere you go!
From secret cafés to breathtaking viewpoints, skip the crowded tourist spots and find places that match your style. Our app makes it easy with voice search, smart filtering, route optimization, and insider tips from travelers worldwide. Download now for the complete mobile experience.
A unique approach to discovering new places❞
— Le Figaro
All the places worth exploring❞
— France Info
A tailor-made excursion in just a few clicks❞
— 20 Minutes