5. In Humboldt County, exit to cruise the Avenue of the Giants, which meanders 33 miles through lush redwood forests. Stretch your legs on the half-mile trail at Founders Grove and look for the Dyerville Giant, which shook the Richter scale when it fell in 1991.
6. In Klamath, brake for a waving, 49-foot-tall Paul Bunyan who stands alongside Babe the Blue Ox, chatting up the crowd at roadside attraction Trees of Mystery. The fabled pair are part of the oversize fun, which also includes a redwood nature walk and a gondola ride.
7. You can glimpse southern Oregon's Samuel H. Boardman State Scenic Corridor as you speed by, but stepping outside the car quadruples the seaside splendor. Spy arched rock formations at Natural Bridges, or relish the sight of migrating whales from the 1.3-mile Cape Ferrelo trail.
8. The bayfront town of Newport is known for its seafood. Mo's dishes up one of the state's most famous clam chowders, which has lured diners since 1946 and even garnered honors from the Smithsonian.