Originally, the zoo was built to be used for scientific purposes. It opened for the first time in 1828 and was turned into a public zoo in 1847. Now it is considered to be one of the most progressive zoos in the world.
The zoo is home to more than 750 species, including various local and exotic animals, such as the endangered Asiatic lions. The first public aquarium, reptile house, and insect house were opened here. Also, the first children's zoo started operating in London Zoo.
Various events are organized in the zoo (e.g. Children's Day or the Fire Walk) so be sure to check the official website before your visit.