15 Best Zoos in the World

Looking for the best zoos in the world to explore? This guide showcases top-tier zoological parks that go far beyond animal exhibits. These are institutions known for their leadership in wildlife conservation, advanced animal care, and immersive educational programs that inspire visitors of all ages.

Each zoo highlighted here has been selected for its ethical standards, global recognition, and impact-driven initiatives. Many hold accreditations from trusted organizations like the Association of Zoos and Aquariums (AZA) or the World Association of Zoos and Aquariums (WAZA), ensuring transparency, welfare, and responsible practices.

From iconic names like the San Diego Zoo to hidden gems in Europe and Asia, these destinations offer unforgettable experiences—and make a real contribution to protecting the planet’s most vulnerable species.

1. San Diego Zoo – San Diego, USA

The San Diego Zoo consistently ranks among the best zoos in the world for good reason. Located in California’s Balboa Park, this 100-acre facility is home to over 12,000 animals representing more than 650 species, many of which are endangered. What sets it apart is its groundbreaking role in conservation science through the San Diego Zoo Wildlife Alliance. Visitors enjoy expansive, naturalistic enclosures and engaging educational experiences, including behind-the-scenes tours and animal encounters. As a long-standing AZA-accredited institution, the zoo upholds the highest standards in animal welfare and environmental stewardship, making it both a top-tier attraction and a leader in global wildlife protection.

2. Singapore Zoo – Singapore

The Singapore Zoo is widely regarded as one of the most beautifully designed and ethically managed wildlife parks in the world. Nestled within lush rainforest, it houses over 4,200 animals in open-concept habitats that replicate the animals' natural environments, offering a truly immersive experience for visitors. Operated by Mandai Wildlife Group and accredited by WAZA, the zoo is deeply committed to animal welfare, research, and regional conservation efforts. Programs like their orangutan rehabilitation and biodiversity education initiatives reflect a strong dedication to sustainable wildlife care. For travelers seeking a world-class zoo that blends learning, ethics, and incredible wildlife encounters, Singapore Zoo sets a global benchmark.

3. Chester Zoo – Cheshire, England

Chester Zoo stands out as one of Europe’s foremost zoological institutions, housing more than 35,000 animals from over 500 species. Renowned for its pioneering conservation programs, it actively supports over 80 wildlife projects worldwide, including efforts to protect critically endangered species such as the Sumatran rhino and Bornean orangutan. The zoo’s commitment to ethical animal care is evident in its spacious, naturalistic habitats designed to mimic animals’ native environments. Accredited by the British and Irish Association of Zoos and Aquariums (BIAZA), Chester Zoo combines cutting-edge scientific research with educational outreach, making it a vital hub for conservation and a must-visit destination for animal enthusiasts.

4. Berlin Zoological Garden – Berlin, Germany

Berlin Zoological Garden is celebrated for its remarkable diversity, boasting the largest collection of species of any zoo worldwide, with over 20,000 animals across more than 1,300 species. Founded in 1844, it blends rich history with modern conservation initiatives and innovative animal care practices. The zoo actively participates in numerous breeding programs, including those for endangered species such as the giant panda and African elephant. As a member of the European Association of Zoos and Aquaria (EAZA), Berlin Zoo upholds rigorous welfare standards and contributes significantly to global wildlife research and preservation. Visitors experience thoughtfully designed enclosures that prioritize natural habitats, educational exhibits, and a commitment to sustainability.

5. Bronx Zoo – New York City, USA

Covering 265 acres in the heart of New York City, the Bronx Zoo stands as a trailblazer in urban wildlife conservation and ranks among the largest city-based zoos globally. It is renowned for its innovative habitats, including the award-winning Congo Gorilla Forest, which offers visitors a chance to observe endangered western lowland gorillas in a naturalistic setting. The zoo’s leadership in animal welfare and research is reflected through its robust conservation programs, which work globally to protect endangered species and their habitats. Accredited by the Association of Zoos and Aquariums (AZA), the Bronx Zoo combines immersive visitor experiences with education and scientific research, making it a key player in the global effort to safeguard biodiversity.

6. Loro Parque – Tenerife, Spain (Canary Islands)

Loro Parque is a world-class zoological park recognized for its exceptional care of exotic species, particularly parrots, marine mammals, and big cats. Situated on the island of Tenerife, it has earned international acclaim for combining entertainment with a strong commitment to conservation, research, and environmental education. The park’s conservation programs include breeding endangered parrots and supporting marine life rescue efforts. Loro Parque holds accreditation from WAZA and emphasizes high animal welfare standards with spacious, naturalistic enclosures. Visitors are treated to impressive orca and dolphin shows that are carefully managed to prioritize animal wellbeing, making Loro Parque both a popular tourist destination and a respected conservation institution.

7. Taronga Zoo – Sydney, Australia

Taronga Zoo, perched on the shores of Sydney Harbour, is a leading institution in wildlife conservation and education in the Southern Hemisphere. Home to over 4,000 animals representing 350 species, the zoo focuses heavily on native Australian wildlife alongside exotic species. Accredited by the Zoo and Aquarium Association (ZAA) and WAZA, Taronga actively participates in species recovery programs and scientific research, including efforts to save endangered animals like the Tasmanian devil and the northern hairy-nosed wombat. Its engaging educational programs and breathtaking views create an immersive visitor experience that balances enjoyment with a mission to promote environmental awareness and global conservation.

8. Vienna Zoo (Tiergarten Schönbrunn) – Vienna, Austria

Established in 1752, Tiergarten Schönbrunn in Vienna is renowned as the oldest zoo in continuous operation anywhere in the world. It combines historic charm with cutting-edge animal care and conservation practices. Recognized by the European Association of Zoos and Aquaria (EAZA), the zoo excels in breeding endangered species and has notably played a key role in reintroducing the rare Przewalski’s horse back into its natural habitat. Its beautifully maintained baroque setting offers visitors a unique blend of culture, science, and education. The zoo’s dedication to research, ethical animal welfare, and sustainability make it a vital contributor to global conservation efforts and a must-see destination for wildlife enthusiasts.

9. Beauval Zoo (ZooParc de Beauval) – Saint-Aignan, France

Beauval Zoo ranks among Europe’s top zoological parks, housing a diverse collection of over 10,000 animals across more than 600 species. It is especially famous for its successful breeding of giant pandas—the only zoo in France to house these rare animals. The zoo places a strong emphasis on conservation and education, supporting international projects to protect endangered species such as white lions and manatees. Accredited by the European Association of Zoos and Aquaria (EAZA), Beauval Zoo prioritizes spacious, naturalistic habitats and animal welfare. Visitors can enjoy immersive experiences alongside educational programs that foster awareness and support for wildlife preservation worldwide.

10. National Zoological Gardens – Pretoria, South Africa

Commonly known as Pretoria Zoo, the National Zoological Gardens of South Africa stands as one of the largest and most significant wildlife institutions on the African continent. Spanning over 85 hectares, it houses more than 9,000 animals representing hundreds of species, with a strong focus on African wildlife conservation. Accredited by the South African National Biodiversity Institute (SANBI) and affiliated with global zoo networks, the zoo plays a crucial role in breeding programs for endangered species like the black rhinoceros and African wild dog. Educational outreach and habitat preservation efforts are central to its mission, making it a vital hub for biodiversity research and environmental awareness in Africa and beyond.

11. Toronto Zoo – Toronto, Canada

As Canada’s biggest zoo, the Toronto Zoo shelters more than 5,000 animals representing upwards of 500 different species. It is organized into geographic regions that showcase animals in habitats designed to closely resemble their natural environments. The zoo is a key player in global conservation, actively participating in breeding programs for endangered species such as the Amur tiger and the whooping crane. Accredited by the Canadian Association of Zoos and Aquariums (CAZA), the Toronto Zoo also leads extensive research and public education initiatives aimed at promoting biodiversity and environmental stewardship. Its combination of scientific rigor and family-friendly experiences makes it a top destination for wildlife enthusiasts.

12. Pairi Daiza – Brugelette, Belgium

Pairi Daiza is a unique zoological park known for its beautifully themed environments that recreate natural habitats from around the world. Home to over 7,000 animals from 700 species, this zoo focuses heavily on conservation and education, supporting numerous international projects aimed at protecting endangered species like the Sumatran tiger and the Asian elephant. Certified by the European Association of Zoos and Aquaria (EAZA), Pairi Daiza focuses on providing expansive habitats and engaging visitor experiences that enhance appreciation for wildlife and biodiversity. Its blend of cultural artistry and scientific dedication makes it a standout destination in Europe’s zoo landscape.

13. Omaha’s Henry Doorly Zoo and Aquarium – Omaha, USA

Omaha’s Henry Doorly Zoo and Aquarium is renowned for its groundbreaking exhibits, including the world’s largest indoor desert and a sprawling indoor rainforest. The zoo houses over 17,000 animals representing more than 970 species and is a leader in animal care, conservation, and research. Accredited by the Association of Zoos and Aquariums (AZA), it actively supports global species recovery programs, including those for the Amur leopard and African penguin. The zoo’s commitment to innovative habitats and educational outreach ensures visitors enjoy an immersive experience while learning about biodiversity preservation and environmental stewardship.

14. Ueno Zoo – Tokyo, Japan

Ueno Zoo, established in 1882, is Japan’s oldest and most visited zoo, renowned for its dedication to animal welfare and public education. Housing over 3,000 animals across more than 400 species, it is internationally recognized for its successful giant panda breeding program. The zoo’s exhibits are designed to closely mimic natural habitats, fostering both animal health and visitor engagement. Accredited by the Japanese Association of Zoos and Aquariums (JAZA), Ueno Zoo actively participates in conservation and research projects, promoting awareness about endangered species native to Japan and worldwide. It offers a culturally rich and educational experience for visitors seeking to connect with global wildlife.

15. Columbus Zoo and Aquarium – Columbus, USA

The Columbus Zoo and Aquarium, famously led by wildlife advocate Jack Hanna, is recognized for its extensive conservation programs and commitment to animal welfare. Home to over 10,000 animals from 600 species, the zoo is deeply involved in wildlife rescue, rehabilitation, and breeding initiatives for endangered species such as the Sumatran tiger and Asian elephant. Accredited by the Association of Zoos and Aquariums (AZA), the zoo provides immersive habitats that prioritize natural behavior and environmental enrichment. Its educational programs engage visitors of all ages, fostering a greater understanding of biodiversity and the urgent need for global wildlife conservation.