Knock out! Rotterdam Daily Photo: Knock out! When in Rotterdam you must visit the Zwaanshals. A street with all kinds of small shops and business and a special vibe! I took this picture of a mural, a real knock out picture! Share this: Share on Facebook (Opens in new window) Facebook Share on Pinterest (Opens in new window) Pinterest Share on WhatsApp (Opens in new window) WhatsApp Share on Tumblr (Opens in new window) Tumblr Email a link to a friend (Opens in new window) Email