Coa Valley lies in northeastern Portugal near the Douro River, in a landscape shaped by steep hills, schist cliffs, vineyards, olive groves, and almond trees. The area is best known for its open-air prehistoric rock engravings, spread across the banks of the Coa River and protected as a UNESCO World Heritage Site.
Akron is the headquarters for the country's largest rubber companies, including Firestone, Goodyear, and General Tire. Akron is also home to the Goodyear Aerospace Corporation Air Dock, headquarters for the Goodyear blimp.