Frederick Law Olmsted was an American landscape architect, journalist, social critic, and public administrator. He is popularly considered to be the father of American landscape architecture
a. Central Park, New York
b. Prospect Park is a 585-acre (237 hectare) public park in the New York City borough of Brooklyn, and the largest public park in Brooklyn. ...
c. Prospect Park was designed by Frederick Law Olmsted and Calvert Vaux after their completion of Manhattan's Central Park
d. Mount Royal Park in Montreal, Quebec;
e. Riverside Illinois has long been considered the best example of Olmsted's idea of how suburbs should look. Riverside is a 1600 acre community along the Des Plaines River west of Chicago. The planning of the community took Olmsted and Vaux 2 years, beginning in 1868. The main idea was to secure enough space for recreation and to make sure that there were scenic areas available to all residents.
f. Golden Gate Park in San Francisco
g. Elm Park in Worcester, Massachusetts
h. the Niagara Reservation in Niagara Falls, New York;
i. one of the first planned communities in the United States, Riverside, Illinois;
j. the Emerald Necklace in Boston, Massachusetts;
k. Highland Park in Rochester, New York;
l. Belle Isle Park, in the Detroit River for Detroit, Michigan;
m. the Grand Necklace of Parks in Milwaukee, Wisconsin; Cherokee Park and
n. entire parks and parkway system in Louisville, Kentucky;
o. the 735-acre (297 ha) Forest Park in Springfield, Massachusetts, featuring America's first public "wading pool";
p. the George Washington Vanderbilt II Biltmore Estate in Asheville, North Carolina;
q. the master plans for the University of California, Berkeley, the University of Maine, and Stanford University near Palo Alto, California as well as for The Lawrenceville School; and Montebello Park in St. Catharines, Ontario.
r. In Chicago his projects include: Jackson Park; Washington Park; the Midway Plaisance for the 1893 World's Columbian Exposition; the south portion of Chicago's "emerald necklace" boulevard ring;
s. Anderson Park in Upper Montclair, New Jersey; Cadwalader Park in Trenton, New Jersey;
t. the University of Chicago campus.
u. In Washington, D.C., he worked on the landscape surrounding the United States Capitol building.

Jens Jensens was a Danish-American landscape architect. One of America's most visionary prairie school landscape architects, Jensen's design work incorporated horizontal lines in landforms and stonework, the natural branching habits of plants, and the restoration and conservation of native plant materials. Famous works in Chicago.

André Le Nôtre, originally rendered as André Le Nostre, was a French landscape architect and the principal gardener of King Louis XIV of France.
a. Famous works: Gardens of Versailles, which he designed and built for King Louis XIV.
b. The gardens of Vaux-le-Vicomte, Fontainebleau and Greenwich Park in London.

Thomas Jefferson (US President) a pioneer in American landscape architecture
a. Monticello and the University of Virginia).

Lawrence Halprin (1916-2009) was one of the most influential landscape architects of the 20th century. Over a career spanning more than five decades, he designed significant projects across the United States and even overseas. His eponymous firm became a seedbed for many talented designers now celebrated in their own right. The innovative techniques that he pioneered changed the field of landscape architecture forever.

A.E. Bye admired how Frank Lloyd Wright’s designs reflected native prairie landscapes. Another of Bye’s contemporaries was the Danish landscape architect, Jens Jensen, who expressed local ecology in his landscapes. After graduating in 1942, Bye worked briefly with the U.S. Forest Service and the National Park Service before opening his own landscape architecture firm: A. E. Bye & Associates in Greenwich, CT. As a landscape architect, Bye’s designs were comparable to the work of Wright and Jensen as they were created based on the local ecology and frequently inspired by prairies. Many of his contemporaries were not focused on local conditions and native plants, instead favoring exotic species and foreign garden types. Bye’s work is also said to have been strongly influenced by the 18th century English garden aesthetics of Humphry Repton.

Humphry Repton was the last great English landscape designer of the eighteenth century, often regarded as the successor to Capability Brown; he also sowed the seeds of the more intricate and eclectic styles of the 19th century.

Lancelot “Capability Brown" was responsible for over 170 gardens surrounding the finest country houses and estates in Britain. His work still endures at Croome Court (where he also designed the house), Blenheim Palace, Warwick Castle, Harewood House, Appuldurcombe House, Milton Abbey (and nearby Milton Abbas village), in traces at Kew Gardens and many other locations. This man who refused work in Ireland because he had not finished England was called "Capability" Brown, because he would characteristically tell his landed clients that their estates had great "capability" for landscape improvement

Martha Schwartz is an American landscape architect. Her background in fine arts and landscape architecture has contributed to the rise of more expressive landscapes and public spaces in cities around the world.

Peter Walker is an American landscape architect and the founder of PWP Landscape Architecture. He has been described as "a veteran designer of corporate campuses and estates".

Antoni Gaudi this Catalan architect, born in Reus in 1852, can be only called by one name: a visionary. His style was absolutely unique. It included neo-Gothic elements together with Oriental influences, passed through mainstream Modernism, culminating in an organic style inspired by nature to form an original mixture unrivalled by any other architect since.

Sir Geoffrey Jellicoe Kennedy Memorial, Sutton Place Garden and Hever Castle Garden.

Roberto Burle Marx a Brazilian landscape architect, known for introducing Modernism to Brazil. Copacabana Beach promenade, Flamengo Park in Rio de Janeiro and Kuala Lumpur City Centre Park.

Michael Van Valkenburgh is an American landscape architect and educator. He has worked on a wide variety of projects in the United States, Canada, Korea, and France, including public parks, college campuses, sculpture gardens, city courtyards, corporate landscapes, private gardens, and urban master plans.

Isamu Noguchi Japanese American artist and landscape architect. Sculptures in the landscape.

Thomas Dolliver Church (April 27, 1902 – August 30, 1978), also known by Tommy, was a renowned and innovative 20th century landscape architect based in California. He is a nationally recognized as one of the pioneer landscape designers of Modernism in garden landscape design known as the 'California Style'. His design studio was in San Francisco from 1933 to 1977.

Water is the driving force of all nature.
Leonardo da Vinci