in Phoenix Park, Dublin, Ireland

Located on Post Straße across from Train Station

Nestled in the rolling hills Knowland Park.The Oakland Zoo is a non-profit organization,managed by the East Bay Zoological Society.Founded in 1922 by Henry Snow, the Zoo has been locatedin its current Knowland Park location since 1936.

The Oregon Zoo, formerly the Washington Park Zoo, is a zoo in Portland, the largest city in the U.S. state of Oregon. Located 2 miles (3.2 km) southwest of Downtown Portland, the zoo is inside Portland's Washington Park, and includes the 2 ft 6 in (762 mm) narrow gauge Washington Park & Zoo Railway that connects to the International Rose Test Garden inside the park. Opened in 1888 after a private animal collector donated his animals to the City of Portland, the 64-acre (26 ha) zoo is now owned by the regional Metro government.[from wikipedia]

Was Wild Animal Park, San Diego, California.Think of it as a more relaxed form of a zoo spread out overmany hills. The most important thing to bring to this park is a really goodpair of walking shoes.

Located in Balboa Park and open year round.The Zoo was founded on October 2, 1916, and covers100-acre (40-hectare) and is home to rare and endangered animalsrepresenting more than 800 species and subspecies.

Established in 1963Located at 500 Niños Drive

The San Francisco Zoo is a 100-acre (40 ha) zoo located in the southwestern corner of San Francisco, California, between Lake Merced and the Pacific Ocean along the Great Highway. The zoo's main entrance, once located on the north side across Sloat Boulevard and one block south of the Muni Metro L Taraval line, is now to the west on the ocean side of the zoo off of the Great Highway.[from wikipedia]

Catch the U14 Trolley to Wihelma Station then walk