19th century door knockers are a must in Porto's urban landscape. If you pay attention, here and there, you'll find some cool examples. They're used not only to announce your presence but also to keep evil spirits away from your home. #travel #traveling #porto #doorknocker #vacation #visiting #instatravel #instago #instagood #trip #oporto #photooftheday #fun #travelling #tourism #tourist #instapassport #instatraveling #mytravelgram #travelgram #travelingram #igtravel

via IFTTT