Hi fellas! I am doing an internship in Seattle this summer and decided to drive there, because of the generous relocation package provided by my employer. I live around the Kansas City area, and in order to get a full reimbursement of my driving cost + any lodging cost during the trip, I will need to drive at least 350 miles every day. My question would be what are some best spots to visit/check out during the road trip? What would be the best route to cover some of the greatest sightseeing spots? I wouldn't mind driving extra if it's reasonable.

I'm planning on leaving around May 23 and arrive at Seattle around May 29. I'm by myself, but I would love to have a travel partner as well! I drive a '07 Ford Taurus.

Thank you all!!