After Hadrian's death in 138AD, power shifted back into Rome as Hadrian's successors favoured the city as their residence. The Villa continued to be worked on and enlarged during this time. However, later in it's life, the Villa became the focus of barbarian invaders and was plundered. Having fallen into neglect the Villa became a source of work as a quarry for builders.
The Villa is a complex of buildings. Although there is no planned layout for the area, there are 4 groups in which different buildings are placed.
One of the significant aspects about the Villa Adriana is that despite all of this, it has still been a great influence on architects through the ages. Because of the mix of heritages that have been used in it (Eygpt, Greece and Rome), there are many classical elements to look back at for inspiration, especially since they are all in one place.