Robert Smithson is credited with coining the term "Land Art" and creating some of the most iconic works in the movement, including "Spiral Jetty" and "Broken Circle/Spiral Hill."

Land Art often utilizes natural materials such as earth, rocks, water, and vegetation as its primary medium, blurring the boundaries between art and the environment.

Robert Smithson's "Spiral Jetty" is a monumental earthwork constructed from black basalt rocks and salt crystals, forming a spiral shape that extends into the Great Salt Lake in Utah.

Walter De Maria's "Lightning Field" consists of 400 stainless steel poles arranged in a grid pattern across a remote desert landscape in New Mexico, creating a mesmerizing and immersive experience.

Michael Heizer's "Double Negative" comprises two immense trenches carved into the Nevada desert, forming a powerful statement on the relationship between humans and the environment.

James Turrell's "Roden Crater" is an ongoing project that aims to convert a volcanic crater in Arizona into a large-scale artwork, exploring the interplay of light, space, and time.

Crop circles, often attributed to extraterrestrial activity, are a form of Land Art that involves creating intricate patterns in fields using agricultural machinery.

Nancy Holt's "Sun Tunnels" consists of four large concrete tunnels aligned with the sunrise and sunset on the summer and winter solstices, creating a unique interplay of light and shadow.

Joseph Beuys' "7000 Oaks" is an ongoing project that aims to plant 7,000 oak trees in a grid pattern in Kassel, Germany, as a symbol of environmental awareness and regeneration.

Richard Long's "Walking Lines" are created by walking long distances across landscapes and documenting the experience through photographs, maps, and text, blurring the boundaries between art and life.

Earth Mounds, also known as Earthworks, are a type of Land Art that involves creating mounds and depressions in the earth using earthmoving equipment, often exploring the relationship between humans and the natural world.

Christo and Jeanne-Claude's "Wrapped Pont Neuf" involved temporarily wrapping the Pont Neuf bridge in Paris with fabric, creating a striking and ephemeral artwork that challenged traditional notions of public space.

Stonehenge, an ancient megalithic monument in England, is often considered a form of Land Art due to its large-scale sculptures made from rocks and boulders arranged in geometric patterns.

Maya Lin's "Vietnam Veterans Memorial" is a black granite wall inscribed with the names of American soldiers who died or went missing during the Vietnam War, serving as a powerful and moving tribute to those who served.

Crop circles, often attributed to extraterrestrial activity, are a form of Land Art that involves creating intricate patterns in fields using agricultural machinery.