The Continuity of Life Forms

The Washington Park & Zoo Railway (WP&ZRy) is a 2 ft 6 in (762 mm) narrow gauge recreational railroad in Portland, Oregon's Washington Park with rolling stock built to 5/8 scale. Opened in three stages in 1958, 1959 and 1960, it provided transportation between the Oregon Zoo, Hoyt Arboretum, International Rose Test Garden, and the World Forestry Center. The extended line was about 2 miles (3.2 km) long. The service is currently operating on a 1-mile (1.6 km) loop within the zoo grounds. The railway carries about 350,000 passengers per year.The railroad is operational year-round except in January and part of February, when it is closed for required maintenance. Special events occur during the winter holidays. As of 2018, the price of a ticket was $4.00 for the short 6 minute internal loop., but zoo admission was also required. Zoo officials announced in September 2013 that the line would be closed for about one year for construction, with the last day of service scheduled to be September 22. The temporary closure was necessitated by the construction of the zoo's new Elephant Lands exhibit, which will also include remodeling of other parts of the zoo grounds. The short-loop route through the southwest part of the zoo grounds was scheduled to be removed permanently, and during the one-year suspension of service a new section of track was to be laid to create a replacement for the short loop. Train operations returned running on the new Zoo Loop line only as of November 22, 2014. In May 2018 an online petition was created in opposition to the Washington Park Master Plan's endorsement to remove the "long route", which runs from the Oregon Zoo to the International Rose Test Garden. The master plan primarily called for the removal of all tracks so that it could be replaced by a paved twelve foot (12') wide path. As of May 2020, over 37,000 people have signed the online petition in support of keeping and repairing the, "long route".

The Oregon Zoo, originally the Portland Zoo and later the Washington Park Zoo, is a zoo located in Washington Park, Portland, Oregon, approximately 2 miles (3.2 km) southwest of downtown Portland. Founded in 1888, it is the oldest zoo west of the Mississippi River.The 64-acre (26 ha) zoo is owned by the regional Metro government. It currently holds more than 1,800 animals of more than 230 species, including 19 endangered species and 9 threatened species. The zoo also boasts an extensive plant collection throughout its animal exhibits and specialized gardens. The zoo also operates and maintains the 2 ft 6 in (762 mm) narrow gauge Washington Park & Zoo Railway that previously connected to the International Rose Test Garden inside the park, but currently runs only within the zoo. The Oregon Zoo is Oregon's largest paid and arguably most popular visitor attraction, with more than 1.6 million visitors in 2016. The zoo is a member of the Association of Zoos and Aquariums, and the World Association of Zoos and Aquariums.

Charles Frederic Swigert Jr. Memorial Fountain is an outdoor 1983 bronze and stone fountain and sculpture by Richard Beyer, installed at the Oregon Zoo in Portland, Oregon.

Portland Children's Museum was a children's museum located in Portland's Washington Park, adjacent to the Oregon Zoo. Founded in 1946, Portland Children's Museum was the sixth oldest children's museum in the world and the oldest west of the Mississippi. The 50,000 sq ft (4,600 m2) museum received over a quarter of a million visits from children and their families every year. It was a non-profit organization with tax-exempt status and member of the Association of Children's Museums. In March 2021, the museum announced it would permanently close at the end of June, due to the financial loss brought on by the COVID-19 pandemic.

Washington Park is a light rail station in Portland, Oregon, United States, served by TriMet as part of the MAX Light Rail system. Situated between Sunset Transit Center and Goose Hollow/Southwest Jefferson Street station, it is the 17th and 3rd station eastbound on the Blue Line and the Red Line, respectively. The station's two tracks and island platform are part of the Robertson Tunnel beneath Portland's West Hills. Its head house and surface-level plaza occupy the middle of a parking lot surrounded by the Hoyt Arboretum, Oregon Vietnam Veterans Memorial, Oregon Zoo, Portland Children's Museum, and World Forestry Center. Washington Park is the only completely underground station in the MAX system. At 260 feet (79 m) below ground, it is the deepest transit station in North America and in the western hemisphere, and the sixth-deepest in the world.The station opened in September 1998 as part of the Westside MAX extension to downtown Hillsboro. Connections include TriMet bus route 63–Washington Park/Arlington Heights and a free seasonal shuttle. Various hiking trails, some a part of Portland's 40-Mile Loop, connect the station to other parts of Washington Park, including the International Rose Test Garden and the Portland Japanese Garden.

The William F. Mangels Four-Row Carousel, formerly located in southwest Portland, Oregon, is listed on the National Register of Historic Places.

The Oregon Vietnam Veterans Memorial is an 8-acre (0.03 km2) outdoor war memorial dedicated to Oregonians who served in the Vietnam War. It is located in Portland, Oregon's Washington Park at 45.5120°N 122.71857°W / 45.5120; -122.71857. The memorial was dedicated in 1987, inspired in 1982 by visits to the national Vietnam Veterans Memorial by five veterans and the parents of a Marine killed in Vietnam. Landscape architecture firm Walker Macy of Portland designed the memorial, while construction labor and materials were almost entirely volunteer donations.The font used in the memorial was created for the exclusive use of the Memorial. It was designed by Janis Price, and is called Hoyt, in recognition of the Arboretum. The memorial is located in the Hoyt Arboretum, adjacent to the World Forestry Center and the Oregon Zoo. The nearby trail system connects to Forest Park and is close to the International Rose Test Garden and the Portland Japanese Garden. It is accessible by U.S. Route 26 and by Portland's MAX light rail system, which has a station in Washington Park.

Hoyt Arboretum is a public park in Portland, Oregon and is part of the complex of parks collectively known as Washington Park. The 189-acre (76 ha) arboretum is located atop a ridge in the Tualatin Mountains two miles (3.2 km) west of downtown Portland. Hoyt has 12 miles of hiking trails, two miles of accessibility paved trails, and is open free to the public all year. About 350,000 visitors per year visit the arboretum.

The Ernest Haycox Estate, located in southwest Portland, Oregon, is listed on the National Register of Historic Places. The Georgian-Colonial Revival Style house was designed by Glenn Stanton for author Ernest Haycox and completed in 1940.

The Baruh–Zell House, also referred to as the Leo and Olga Baruh House, is a historic house located in Portland, Oregon, United States. Leading Portland residential architect Herman Brookman's design for this 1937 Tudor Revival house was one of his finest achievements. In many of its features, such as curved walls, stripped-down ornamentation, recessed entry, and functionally-oriented rear elevation, it heralds the transition from highly traditional European styles executed on a grand scale to a modernized and simplified reinterpretation of those styles responsive to contemporary technology and preferences. The house was added to the National Register of Historic Places in 2007.

Council Crest Park is a city park in southwest Portland in the U.S. state of Oregon. Amenities include paved and unpaved paths, a dog off-leash area, picnic tables, public art, a view point, and a wedding site that can be reserved. The 43.51-acre (17.61 ha) park, operated by Portland Parks & Recreation, is open year-round from 5 a.m. to midnight. It was the site of an amusement park from 1907 until 1929.

Washington Park is a public urban park in Portland in the U.S. state of Oregon. It includes a zoo, forestry museum, arboretum, rose garden, Japanese garden, amphitheatre, memorials, archery range, tennis courts, soccer field, picnic areas, playgrounds, public art and many acres of wild forest with miles of trails. Washington Park covers more than 458 acres (185 hectares) on mostly steep, wooded hillsides which range in elevation from 200 feet (61 m) at 24th & West Burnside Street to 870 feet (270 m) at SW Fairview Blvd. It comprises 241.45 acres (97.71 hectares) of city park land that has been officially designated as "Washington Park" by the City of Portland, as well as the adjacent 64-acre (26 ha) Oregon Zoo and the 153-acre (62 ha) Hoyt Arboretum, which together make up the area described as "Washington Park" on signs and maps.