Sculptures for the British Medical Association (1908), Jacob Epstein, London. (Image: Via Tate)
Watts Towers (1921-1954), Simon Rodia, Watts, Los Angeles. (Image: Via Library of Congress)
Mount Rushmore National Memorial (1927-1941), Gutzom Burglom. Black Hills, South Dakota. (Image: Via Library of Congress)
The West Winds (1928), Henry Moore. London. (Image: Via Henry Moore Archive)
Man at the Crossroads (1933), Diego Rivera. New York City. (Image: Via Wikimedia Commons)
Astronomer’s Monument (1933-34), Public Works of Art Project (PWPA), Griffith Park Observatory, Los Angeles. (Image: Via Wikimedia Commons)
Festival of Britain, various temporary works. Above: The Sunbathers (1951), Peter Laszlo Peri. London. (Image: Via Wikimedia Commons)
Harlow Family Group (1956), Henry Moore. Harlow, England. (Image: Via Henry Moore Foundation)
Meridian (1958-1960), Barbara Hepworth. London. (Image: Via BarbaraHepworth.org.uk)
Spiral Jetty (1970), Robert Smithson, Great Salt Lake, Utah. (Image: Via deseret.com)
The Lightning Field (1977), Walter de Maria. New Mexico. (Image: Via Wikimedia Commons)
Surrounded Islands (1980-83), Christo & Jeanne-Claude. Biscayne Bay, Florida. (Image: Via christojeanneclaude.net)
House (1993), Rachel Whiteread, London. (Image: Via artsy.net)
Angel of the North (1998), Antony Gormley, Location. (Image: Mike Peel via Wikimedia Commons).
Cloud Atlas (2006), Anish Kapoor. Chicago. (Image: Via Library of Congress).
Harris Flights (2013), Charles Quick (In Certain Places) and Research Design. (Image: via artsandplace.org)