The Outdoor Advert titled THE REVOLVING DOORS POSTER was done by Scholz & Friends Hamburg advertising agency for product: Siemens Mixer Mq 9555 (brand: Siemens) in Germany. It was released in the Dec Home electronics & Home Appliances
NatGeo using escalators to promote their up and coming and programs. I think this is is really clever as you are heading down the escalator into the crocodile pit. I wonder if their could a similar stunt for the top of the escalator maybe a shark mouth?