#1: Plaque on the Wrigely Building, Chicago Quick links to similar images: Wrigely Building Plaque Architecture Landmark Chicago Illinois
	#2: Plaque, Golden Gate Bridge Quick links to similar images: Golden Gate Bridge Plaque Suspension Bridge California Pacific Ocean International Orange San Francisco Joseph Strauss
	#3: Sam Morse Plaque and Lone Cypress, Pebble Beach Quick links to similar images: Lone Cypress Tree Historic Landmark Old tree Sam Morse Plaque Pebble Beach 17 mile Drive Monterey California
	#4: A plaque commemorates the location of what was once the world's largest Cannery, Sunnyvale, California Quick links to similar images: Plaque Libby Tower Cannery Historic Landmark Sunnyvale California