Historical Athens and Acropolis of Athens Walking Tour. See Ancient Greece's most impressive sights on this 3-hour Athens walking tour. Get an up-close look at the Greek Parliament and the Tomb of the Unknown Soldier, as well as the presidential guards who protect it. Explore the National Gardens and wander the timeworn streets of Plaka. Then, cap your tour at the Acropolis of Athens, the Greek capital’s UNESCO World Heritage–listed showstopper, where the Parthenon and other classical ruins await. Book and Save 10% Off Historical Athens and Acropolis of Athens Walking Tour.