Brookfield Zoo Chicago

One of the largest zoos in the US, covering 57 hectares in suburban Chicago with over 280 species.

Brookfield Zoo in Brookfield, a suburb of Chicago, is one of the most important zoos in the United States. Spread across more than 57 hectares, it is home to over 424 animals in more than 280 species — from big cats and marine mammals to reptiles and tropical birds. Founded in 1921 and opened in 1934, the zoo was a pioneer of modern zoo design, adopting moats instead of cages early on to create more natural habitats. Beyond the animal experience, the sprawling park with themed areas and special exhibitions offers a rich programme for families, school groups, and nature enthusiasts. Free admission to the outdoor areas makes it an attractive destination for spontaneous visits.