Are you planning a journey to Madrid, Spain anytime in the near future? If so, you should take the time to see the Zoo Aquarium de Madrid. This zoo and aquarium first opened in 1770 and is one of the biggest in Spain. It is home to over 6000 animals of roughly 500 different species, including the rare large panda. You can enjoy a wide selection of activities and exhibits here, such as a petting zoo, an aviary, a dolphin exhibit, a train ride and a bus ride. If you get hungry, there are also multiple restaurants that you can choose from.