Final answer:
Hadrian's Villa is an opulent suburban villa outside of Rome, built by Emperor Hadrian. It features gardens, fountains, and luxury elements, serving as a place of recreation and displaying wealth. The villa reflects Hadrian's social status and power as an emperor.
Step-by-step explanation:
Hadrian's Villa, located outside of Rome, is an opulent example of a suburban villa in ancient Rome. The villa and its grounds were built by Emperor Hadrian during the imperial period. Some of the key features of the villa include gardens, fountains, mosaics, and elements of luxury similar to those found in townhouses.
The main reasons why Hadrian's Villa was built were for recreation and to display wealth. It served as a retreat for the emperor and a place where he could showcase his grandeur and cultural interests. The villa also reflected the social status and power of Hadrian as an emperor.