Osuna is similar to Ecija in that it is home to some fine mansions dating back to the 16th and the 18th centuries.
The town's main monuments are the magnificent Palacio de Los Cepeda with its rows of baroque columns and the Palacio de Puente Hermosa which has fabulous twisted pillars encrusted with grapes and vine leaves.
On the hilltop overlooking the town, the visitor can find the most impressive buildings including the university which was founded in 1548 and the Colegiata where the Duques de Osuna has managed in joining together a fine art collection.
Restaurants can be found on and around the Plaza Mayor and the casino is a good place for a drink.