Shoreline is one of Washington's newest cities, incorporated in 1995. However, the name dates back to the '40s when a school district was created, whose boundaries stretched from "Shore to Shore" (Puget Sound to Lake Washington) and "Line to Line" (the old Seattle city limit of 85th St. to the Snohomish County Line). Though the modern borders of the city do not stretch to Lake Washington, due to Lake Forest Park to the east, the area kept the "Shoreline" name.
Shoreline's street grid is continuous with Seattle's, and is generally easy to navigate. There are a few common points of confusion: similarly-named 15th Ave NW and 15th Ave NE are both major north-south streets a few miles apart, and the street along the northern boundary straddles the county line, making it simultaneously 205th St (King County) and 244th St (Snohomish County)!