This warning sign is in Houtong Cat Village (猴硐貓村) in Ruifang District, New Taipei, Taiwan. The village is famous for its cat population: they roam the streets, lie around, and sleep in little cat houses. You can read more about Houtong and see lots of cat pictures here: www.amusingplanet.com/2013/06/houtong-cat-village-taiwan.html