Walter Burley Griffin, an American architect and landscape architect, was the visionary behind the planning and design of Canberra, the capital city of Australia. 

• In 1911, the Australian government decided to hold an international design competition to choose a plan for the new capital city. The competition attracted entries from architects around the world.
• Walter Burley Griffin, along with his wife Marion Mahony Griffin, submitted a design that was influenced by the principles of the City Beautiful movement, incorporating geometric patterns, natural elements, and an emphasis on aesthetics.
•  His plan envisioned a city that harmonized with the landscape.
• Griffin's plan for Canberra included a layout that integrated the city with its natural surroundings, incorporating the nearby mountains, water bodies, and open spaces. The design also featured a system of radial avenues and geometric shapes, creating a distinctive and aesthetically pleasing urban environment.
• The city still bears many elements of his original plan, and the Griffin-designed areas, such as Lake Burley Griffin, remain prominent features. His ideas continue to shape discussions about urban planning and design in Canberra.