Hadrian had an abiding and enthusiastic interest in art, architecture and public works. Rome's Pantheon (temple "to all the gods"), originally built by Agrippa and destroyed by fire in 80, was partly restored under Trajan and completed under Hadrian in the domed form it retains to this day. Hadrian's Villa at Tibur (Tivoli) provides the greatest Roman equivalent of an Alexandrian garden, complete with domed Serapeum, recreating a sacred landscape. An anecdote from Cassius Dio's history suggests Hadrian had a high opinion of his own architectural tastes and talents, and took their rejection as a personal offence: at some time before his reign, his predecessor Trajan was discussing an architectural problem with Apollodorus of Damascus – architect and designer of Trajan's Forum, the Column commemorating his Dacian conquest, and his bridge across the Danube – when Hadrian interrupted to offer his advice. Apollodorus gave him a scathing response: "Be off, and draw your gourds sarcastic reference to the domes which Hadrian apparently liked to draw. You don't understand any of these matters." Dio claims that once Hadrian became emperor, he showed Apollodorus drawings of the gigantic Temple of Venus and Roma, implying that great buildings could be created without his help. When Apollodorus pointed out the building's various insoluble problems and faults, Hadrian was enraged, sent him into exile and later put him to death on trumped up charges.