Fortified roadside inns spaced exactly one day's camel travel apart created a 13th-century logistics network spanning Anatolia. The architecture standardized services, proving medieval Turks understood supply chain optimization.
Christian1311, CC BY-SA 4.0, via Wikimedia Commons
A network engineered for commerce
In the 13th century, the Seljuk Sultanate of Rum transformed Anatolia into a secure trade superhighway. To achieve this, sultans like Alaeddin Keykubad I commissioned a state-sponsored network of fortified inns called caravanserais, or hans. These structures were strategically placed at intervals of 30 to 40 kilometers, a distance precisely calculated to match a single day's journey for a loaded camel caravan. Nearly 100 of these service stations were built, creating a logistics chain that connected trade routes from Persia and Central Asia to the Mediterranean.
The system worked because of its state-funded model. For three days, all travelers—regardless of religion or nationality—received free lodging, food, and fodder for their animals. This policy, funded through endowments called vakıf, removed immense risk and overhead from merchants, stimulating commerce across the Sultanate. The Seljuks even instituted a form of state insurance, compensating merchants whose goods were lost to banditry. This combination of security and standardized services created one of the most advanced commercial support systems of the medieval world.
Standardized architectural design
The caravanserais were marvels of standardized, functional architecture. Built from hewn stone, their massive, fortress-like walls provided security against raids. Access was restricted to a single, monumental entrance portal, or taçkapı, which was often elaborately decorated with geometric carvings and muqarnas vaulting, contrasting with the severe exterior.
Inside, the layout followed a consistent pattern designed to function in all seasons. A large open-air courtyard was surrounded by arcades containing sleeping quarters, warehouses, and workshops. In the center of this courtyard often stood an elevated kiosk-mosque, or köşk mescidi, a small, square prayer hall raised on four stone arches.
Beyond the courtyard lay a large, covered hall—often with a central nave and side aisles—used for lodging during the harsh Anatolian winters. The largest of these structures, the Sultanhanı near Aksaray, covers 4,900 square meters and shows this design. Each caravanserai functioned as a self-contained unit, employing staff that included physicians, veterinarians, blacksmiths, cooks, and religious officials to service the caravans.
💡Fun Facts
Many caravanserais featured elaborate stone-carved portals with motifs of lions, dragons, and geometric interlace.
The largest hans could accommodate hundreds of animals, such as camels and horses, in their covered halls and courtyard stables.
The network was so extensive that a specific route known as the Denizli-Dogubeyazıt Route contains the remains of about 40 different hans.
Services were so comprehensive they included baths (*hammams*), repair shops, and even musical entertainment in some of the larger, royally-sponsored inns.
The best-preserved example, Sultanhanı (Aksaray), is generally open daily from 08:00 to 18:30 in summer and 08:00 to 17:00 in winter. Hours can vary, so checking locally is advised.
Admission
Admission to Sultanhanı is typically required, with a current fee of around 20 Turkish Lira, though prices may change.
Accessibility
The site is largely flat with stone paving, but surfaces can be uneven. The ground floor of the courtyard and covered hall are generally accessible.
