Where "Zoo" is most popular: The first zoo was established in Egypt in 1500 BC, when Queen Hatshepsut collected animals from across Africa. The oldest zoo remaining in the world is Tiergarten Schonbrunn in Vienna, Austria, which began in 1752 as a collection of the royal family's exotic animals.
Today, both Egypt and Austria continue to prefer zoos. They're also popular in the United States, Canada, Australia, Argentina, Chile, Peru, South Africa and India, among many other nations.
Where "Aquarium" is most popular: It wasn't until 1853 that the first aquarium for the public was opened at the London Zoo. Since then, aquariums have gained popularity around the world, with Mexico, Brazil, Ukraine, Turkey, Iran and Indonesia, among others, preferring them on Google search.
Most popular overall: Zoos. Perhaps because they're so much older, these establishments get most of the global attention.