Mark Ziese June 19, 2025 Exploring Greece, History & Archaeology The Original Spirograph: Math in the Baths of Dion Mark Ziese June 19, 2025 Exploring Greece, History & Archaeology Discover the 2,000-year-old "Spirograph" patterns in the Great Baths of Dion. Explore the intersection of math and history on our 2026 Greece tours.
