Owned by the Royal Zoological Society of Scotland (RZSS), this sprawling hillside zoo is home to more than 1,500 animals, from Sumatran tigers and lions to pygmy hippopotamus and giant anteaters. The star attractions, however, are the penguins—known for the daily strolls they take outside their enclosure—and the UK’s only giant pandas: Tian Tian and Yang Guang.