4 sided pyramid sol lewitt biography

Sol LeWitt's Four-Sided Pyramid, installed in 1999 at the National Gallery of Art Sculpture Garden in Washington, D.C., consists of concrete blocks precisely stacked to form a stark, eye-catching pyramid.

In bright sunlight, the blindingly white blocks and shadows play curious visual tricks on the eye as you view the structure from different angles.

Although the blocks are rectangular, each one equivalent to two cubes attached side by side, LeWitt's structure can look like a huge pile of cubes from some viewpoints.

The contrasting white blocks and dark shadows can also create a flip-flopping (isometric) optical illusion, where it isn't clear whether a given vertex is an inside or outside corner.

LeWitt used cubes and multiples of cubes, arranged in myriad ways, as basic components in many of his constructions, both solid and open.

Repeating patterns and geometric regularity were also key elements of his art.

LeWitt's approach was to come up with a concept for each structu