Saturday, March 29, 2025 at 4:30 p.m. on KPBS TV / PBS app. Samantha starts her trip with a view of the St. Louis Arch and visits Ted Drewes Frozen Custard. She meets author Michael Wallis, who shares insights on Route 66. Exploring Cuba, Missouri, she admires colorful murals. She reflects on the Tulsa massacre at a memorial before learning why Tulsa is known as the Route 66 capital.