Yes, a special package ticket can be bought from the Greek Ministry of Culture that manages these sites. It provides access to The Acropolis and seven other sites. A combined ticket is 30 euros, a potential saving of 34 euros in the summer months. There is also an Athens City Pass that includes ancient sites and offers options which include public transport, excursions and even a one-day cruise. Prices start at 33 euros. Combined tickets can be bought online.