The House of Caecilius is a well-preserved Roman house located in the ancient city of Pompeii. It belonged to a wealthy banker named Caecilius Isidorus and showcases typical features of Roman domestic architecture, including an atrium, peristyle garden, and various rooms for different purposes. The house is notable for its intricate frescoes and mosaics, which reflect the artistic style of the time. It provides valuable insights into the daily life and social status of its inhabitants, illustrating the luxury and sophistication of Roman life before the eruption of Mount Vesuvius in 79 AD.