In Rome (Giuliano Dalmata). With a stay at Occidental Aran Park in Rome (Giuliano Dalmata), you'll be within a 10-minute drive of Palazzo dei Congressi and Roma Convention Center La Nuvola. This upscale hotel is 7.4 mi (11.9 km) from Colosseum and 7.9 mi (12.7 km) from Trevi Fountain.