If you’re itching to hit the road, look no further than one of America’s oldest highways, Route 66. This iconic 2,451 stretch of freeway, completed in the 1930s, connects the Midwest with the West Coast and passes through eight states (Illinois, Missouri, Kansas, Oklahoma, Texas, New Mexico, Arizona and California). Slow-pacing it through prairies and deserts might not be the first choice for folks looking to explore the U.S. without depleting their PTO bank, but it makes for a delightful, classic American road trip experience if you can swing it. It helps that many of the points of interest you’ll pass on your way west have embraced the nostalgia—think big neon signs and old-timey gas stations with retro soda fountains. How quaint! For the ultimate Route 66 road trip itinerary, follow below.