Blaine

Peace Arch State Park
+1 360 332-8221
Free
Go north on 2nd Street until the loop at A Street.

A grand white arch in a grassy lawn marks the official US-Canada international border. On either side of the park are frequently lines of cars crawling slowly through the border checkpoint lines. You can enter the park from either the US or Canadian side, and walk all around it, but you must leave by the side you entered, or else formally pass through the border checkpoint.