Streets of Perth: Couple's graffiti blog becomes global sensation
Nikki Dale and Duncan Atack started Streets of Perth in July 2014, with the intention to showcase street art in their hometown while supporting local artists.
Crown Fountain, Chicago, southwest corner of Millenium Park. Glass towers stand at each end of a shallow reflecting pool. Faces of 1,000 Chicago residents are displayed onto LED screens - looks like they are spitting water.