Khorramabad is capital of Lorestan Province. It is quite scenic and possesses several attractions, such as 5 Paleolithic cave-dwelling sites. In the city center, a tall citadel called Falak-ol-Aflak (The Heaven of Heavens), a relic of the Sassanid era, is now a nationally popular museum. Khorramabad has what is classed under Mediterranean climate, owing to its high altitude making it much wetter than lowland cities. It remains extremely hot in the summer even with very low humidity, but the winter is sufficiently wet for rainfed agriculture, though much colder than classic Mediterranean climates.