This week, it's off to Greece's Peloponnese peninsula, to visit Olympia, home of the Statue of Zeus and the original Olympic Games. We'll also take a side trip to Sparta and seek out that most Greek of healthy fats: olive oil.

We travel to Babylon in Iraq, to search for the elusive remains of Nebuchadnezzar's Hanging Gardens, which might have not have been his at all. We'll also try masguf and tepsi, Iraqi specialties which have been enjoyed for centuries.

We start our trip around the world in Giza, Egypt, to see the Great Pyramid. We'll talk about how pyramids came to be and how a prince used the Sphinx to build legitimacy, and we'll eat koshari, the veg-friendly national dish.