Villa Jovis is a Roman palace on Capri, southern Italy, built by emperor Tiberius and completed in AD 27. Tiberius mainly ruled from there until his death in AD 37.
Villa Jovis is the largest of the twelve Tiberian villas on Capri mentioned by Tacitus. The entire complex, spanning several terraces and a difference in elevation of about 40 m, covers some 7,000 m² (1.7 acres). While the remaining eight levels of walls and staircases only hint at the grandeur the building must have had in its time, recent reconstructions have shown the villa to be a remarkable testament to 1st-century Roman architecture.
The north wing of the building contained the living quarters, while the south wing saw administrative use. The east wing was meant for receptions, whereas the west wing featured an open-walled hall (ambulatio) which offered a scenic view towards Anacapri.
As water was difficult to come by where the villa was built, Roman engineers constructed an intricate system for the collection of rainwater from the roofs and a large cistern that supplied the palace with fresh water.
South of the main building there are remains of a watch tower (specula) for the quick telegraphic exchange of messages with the mainland, e.g. by fire or smoke.
Access to the complex is only possible on foot, and involves an uphill walk of about two kilometres from Capri town.
References:The Walls of Constantinople are a series of defensive stone walls that have surrounded and protected the city of Constantinople (today Istanbul) since its founding as the new capital of the Roman Empire by Constantine the Great. With numerous additions and modifications during their history, they were the last great fortification system of antiquity, and one of the most complex and elaborate systems ever built. They were also the largest and strongest fortification in both the ancient and medieval world.
Initially built by Constantine the Great, the walls surrounded the new city on all sides, protecting it against attack from both sea and land. As the city grew, the famous double line of the Theodosian Walls was built in the 5th century. Although the other sections of the walls were less elaborate, they were, when well-manned, almost impregnable for any medieval besieger.