<human>:  I'm trying to plan a road trip from Los Angeles to Seattle. What are the best scenic routes I should take?
<bot>: The best scenic routes to take from Los Angeles to Seattle are Highway 101, 1-5, and Highway 3. Highway 101 takes you through the coastal towns of northern California, while 1-5 takes you through Lassen Volcanic National Park and Shasta National Forest. Highway 3 takes you through the Cascade Mountains and Mount Rainier National Park. All these routes provide breathtaking views, but Highway 101 is said to be the most scenic of them all.