BERLIN, GERMANY - AUGUST 06: An elderly resident who suffers from dementia strokes the fur of Mogli during the cat's weekly visit at the Lutherstift senior care facility on August 6, 2014 in Berlin, Germany. Eva Kullmann, Mogli's owner, says the weekly visits are vital therapy and spark the curiosity, communication and delight of the facility residents. Friday, August 8, is World Cat Day. (Photo by Sean Gallup/Getty Images)
That’s right— a cat castle—and it took him 15 years to complete.