tombs were at least partly underground, with internal steps from their door, leading downwards into the tomb's interior. Some had a lobby and several large rooms within, to store any paraphernalia required for memorial ceremonies and feasts. Wealthy, prominent families built large, sometimes enormous, mausoleums. The Castel Sant'Angelo by the Vatican, originally the mausoleum of Hadrian, is the best preserved, as it was converted to a fortress. The family Tomb of the Scipios was in an aristocratic cemetery, and in use from the 3rd century BC to the 1st century AD. A grand mausoleum might include surrounding flower gardens, groves, vineyards and orchards as a source of extra income, reception rooms and kitchens for family visits and feasts. Some had small cottages built to house permanent gardeners and caretakers, employed to maintain the tomb complex, prevent thefts (especially of food and drink left there for the deceased), evict any indigent homeless, and protect the dead from disturbance and harm. The bodies of the wealthy deceased were usually inhumed within sarcophagi, but some mausolea include cremation urns. Some late examples combine Christian and traditional "pagan" styles of burial. Many large mausoleums contained indoor crematoria and banks of small, dovecote-like open niches - columbaria - for multiple cremation-urn burials, apparently following a model provided by Etruscan tomb architecture. They were presumably reserved for lower-status family members, or for slaves, freedmen and other dependents. Larger rectangular niches were used for inhumation burials. The roads from cities were lined with smaller mausolea, such as the Tombs of Via Latina, along the Appian Way. The Tomb of Eurysaces the Baker is a famous and originally very ostentatious tomb in a prime spot just outside Rome's Porta Maggiore, erected for a rich freedman baker around 50–20 BC. The tombs at Petra, in the far east of the Empire are cut into cliffs, some with elaborate facades in the Hellenised "baroque" style of the Imperial period. The Catacombs of Rome were entirely underground. They were famously used by Christians, but also by all religions, with some specialization, such as special Jewish sections. They are large systems of narrow tunnels in the soft rock below Rome, where niches were sold to the families of the deceased in a very profitable trade. Decoration included paintings, many of which have survived. In the Christian period, burial near the grave of a famous martyr became desirable, and large funeral halls were