The Langadas Thermal Baths are located 18 km northeast of Thessaloniki, near Lake Koroneia. Their history dates back to 900 AD. Notably, two bathing tanks from the Byzantine period still exist today (one in 900 AD and one in 1400 AD). Systematic development and organisation of the baths began in the 1920s, establishing Langadas into a popular spa town, particularly among the inhabitants of Thessaloniki. In 1926, management of the Baths –now owned by the Municipality– was transferred to a private entrepreneur who undertook the modernisation of the facilities to European standards. After a destructive earthquake struck Ierissos, Halkidiki, in 1932, the facilities were rebuilt. The bath complex was renovated and a new hotel was constructed, initially called Balkan Olympion Megaron, bringing a modern flair to the spa town. It was soon renamed to Alexander Megaron, before eventually adopting its current name, Hotel Alexander the Great. The new hotel was completed in 1938, designed in a modernist style that departed from local architectural tradition, setting the bath complex on a modernist path. The hotel operated throughout the post-WWII period, attracting visitors from Thessaloniki, Macedonia, and the wider Balkans. It was refurbished between 2000 and 2010 but was ultimately closed during the economic crisis.