6.5km of walls with 83 towers dominating Alanya peninsula; the Red Tower at the harbor is a masterpiece of medieval military architecture
Alanya Castle dominates the rocky promontory that juts into the Mediterranean at the town of Alanya, located approximately 130 kilometres east of Antalya. The fortification complex was constructed primarily by the Seljuk Sultan Alaeddin Keykubad I between 1221 and 1226, and Alanya served as the Seljuk Sultanate of Rum's winter capital during this period. The castle system divides the peninsula into three zones — the harbour area at sea level, the middle city (Ehmedek), and the upper citadel — each with its own defensive perimeter. In total the walls run approximately 6.5 kilometres and incorporate 83 towers, making the Alanya fortification one of the most extensive surviving examples of Seljuk military architecture anywhere. The most celebrated individual structure is the Kızılkule (Red Tower), an octagonal fortress tower 33 metres tall, built in 1226 by the Seljuk architect Ebu Ali Reha of Aleppo using local red limestone that gives the tower its name. The Red Tower guarded the entrance to the harbour and the five-vaulted naval dockyard (Tersane) carved into the cliff face below it — one of the very few surviving examples of Seljuk maritime infrastructure in the world. The Red Tower has been restored and now functions as the Alanya Ethnographic Museum, displaying Seljuk period craftsmanship and regional historical objects. Within the upper citadel, the ruins of a Byzantine church, several large cisterns essential to sustaining a besieged garrison, and a small mosque dating from the Seljuk period survive alongside the fortification walls. Views from the upper citadel extend across both the eastern and western bays of Alanya, the town below, and on clear days toward Cyprus. A surviving neighbourhood of traditional Ottoman-era houses occupies the lower section of the fortified zone, some of which remain inhabited. A minibus service from the base of the hill reaches the upper citadel, sparing visitors the 3-kilometre road ascent.
Why it matters
Alanya Castle, built by Seljuk Sultan Alaeddin Keykubad I between 1221 and 1226, is the defining monument of Seljuk military and maritime architecture on Turkey's Mediterranean coast and served as the winter capital of the Seljuk Sultanate of Rum, making Alanya a significant seat of Islamic power in medieval Anatolia.
Highlights
- Red Tower (Kızılkule) — 33-metre octagonal Seljuk harbour fortress, now an ethnographic museum
- 6.5 kilometres of defensive walls with 83 towers encircling the entire peninsula
- Five-vaulted Seljuk naval dockyard (Tersane) cut into the cliffside — a rare surviving example of medieval Islamic maritime architecture
- Panoramic views from the upper citadel over both eastern and western bays of Alanya
- Living Ottoman neighbourhood surviving within the upper fortified zone
Tips for visiting
- Take the municipal minibus to the upper citadel and walk downhill through the walls — far more comfortable than ascending on foot
- Allow 3–4 hours to explore the citadel, walk a section of the walls, and visit the Red Tower at the harbour
- The Red Tower and the upper citadel have separate admission charges; budget for both
- The Tersane (naval dockyard) is viewable from inside the castle complex and also from the sea on a boat tour from Alanya harbour
- Spring and autumn avoid intense summer heat on the exposed walls; bring water regardless of season
Frequently asked questions
Is Alanya Castle English-language friendly?
The Red Tower museum has bilingual Turkish and English panels. The citadel itself has limited signage; a guided tour or guidebook is recommended for historical context on the wall circuit and upper ruins.
How long does a full visit take?
The Red Tower museum alone takes about 45 minutes. The upper citadel and wall walk require 1.5–2 hours. A combined visit including transit by minibus takes approximately 3–4 hours.
Can visitors with limited mobility visit?
The Red Tower is partially accessible — the ground floor is manageable but upper levels involve steep stairs. The upper citadel is reached by minibus, but exploring the ruins involves uneven and sloping terrain throughout.
Is there a combined ticket for the castle and Red Tower?
Tickets are generally sold separately at each site. Current pricing and any combined options are available from the Alanya Museum Directorate at the ticket booths.