Bristol Zoo was a zoo in the city of Bristol in South West England. It was opened in 1836 by the Bristol, Clifton and West of England Zoological Society and Bristol Zoo was the world's oldest provincial zoo
Zoo Basel is Switzerland's oldest and largest zoo. In 1870, the Ornithologiegesellschaft together with the city of Basel started a project of establishing a zoo where visitors could see Swiss and European animals. Zoo Basel emerged from that project, and opened its doors on July 3rd 1874
Brookfield Zoo Chicago, also known as the Chicago Zoological Park, is a zoo located in the Chicago suburb of Brookfield, Illinois. It opened on July 1st 1934 and quickly gained international recognition for using moats and ditches instead of cages to separate animals from visitors and from other animals. The zoo was also the first in America to exhibit giant pandas.
In 1919 Edith Rockefeller McCormick donated land she had received from her father as a wedding gift to the Cook County Forest Preserve District for development as a zoological garden. The district added 98 acres to that plot and in 1921 the Chicago Zoological Society was established
Copenhagen Zoo is a zoological garden in Copenhagen, Denmark. Founded in 1859, it is one of the oldest zoos in Europe. It was founded by the ornithologist Niels Kjærbølling. He was given the summer garden of "Prinsess Vilhelmines Have" (the garden of Princess Vilhelmine) by the chief directorate of Copenhagen