This is cool, the escalator has been turned to look like an iPhone screen with a whole range of apps. This is advertising apples endless apps. It would be hard to miss this whilst you are travelling up the escalator.
Less is More: Creative and Inspiring Minimalist Print Ads - FedEx: Statue of Sugarloaf - Another great concept portrayed with the help of minimum elements. This ad features two statues colored with the FedEx purple and orange colors.