Sky Drama

John F. Kennedy Center for the Performing Arts, Washington, D.C., 2018.

Photo by I. Peterson

Cafedral

Cafedral by Roberto Fabelo. John F. Kennedy Kennedy Center for the Performing Arts, Washington, D.C., 2018.

Photos by I. Peterson

Mundos

Mundos/Worlds by Roberto Fabelo. John F. Kennedy Center for the Performing Arts, Washington, D.C., 2018.

Photos by I. Peterson

Memorial Chapel

Memorial Chapel, Richmond, Virginia, 2016.

Photo by I. Peterson

Flying Leap

Ottawa, Ontario, 2000.

Photo by I. Peterson

Meteorite

Canadian Museum of Nature, Ottawa, Ontario, 1972.

Photo by I. Peterson

Leaf Grid

Longwood Gardens, Kennett Square, Pennsylvania, 1978.

Photo by I. Peterson

Interrupted Tube

Covenant by Alexander Liberman. University of Pennsylvania, Philadelphia, Pennsylvania, 2000.

See also "Red Phoenix."

Photo by I. Peterson

Obelisk and Glass

PPG Place, Pittsburgh, Pennsylvania, 2010.

See also "Glass Tower."

Photo by I. Peterson

Cinquefoil

Cinquefoil (Potentilla), Missouri, 1979.

Photo by I. Peterson

Bugged Rose

Portland, Oregon, 2009.

Photo by I. Peterson

Block Moses

Moses by Tony Smith. Princeton University, Princeton, New Jersey, 2006.

Photo by I. Peterson

Waterfall's Edge

Montmorency Falls, Quebec, 1973.

Photo by I. Peterson

Optic Electric Force

Negative Optic Electric Force, Positive Optic Electric Force by Alfred Jensen. Virginia Museum of Fine Arts, Richmond, Virginia, 2017.

Photo by I. Peterson

Sky Grid

Tijuana, Mexico, 2008.

Photo by I. Peterson

Cellular Drops

Exploratorium, San Francisco, California, 2014.

Photo by I. Peterson

Chanter

Chanter #1 by Arlo Namingha. Santa Fe Botanical Garden, Santa Fe, New Mexico, 2017.

See also "Bronze Butterfly" and "Sand Hills."

Photo by I. Peterson

Dome Curves and Lines

Kresge Auditorium, Massachusetts Institute of Technology, Cambridge, Massachusetts, 2009.

See also "Walls, Windows, and Riemann Sums" and "Geometreks in Boston."

Photos by I. Peterson

Mother's Day

In memory of my mother, Zelma Alide Petersons (nee Zosens), 1923-2012.

With me and her grandsons, Kenneth and Eric. Toronto, May 2010.

Her favorite flower: a yellow rose.

For episodes from a family history, see "McKenzie Island" and "Caribou Falls."

Skew Tree

Photo by I. Peterson

Half Light

Sarah Lawrence College, Bronxville, New York, 2009.

Photo by I. Peterson

Arch Lights

Great Hall, National United Methodist Church, Washington, D.C., 2018.

Photo by I. Peterson

Memorial Arches

Alene Grossman Memorial Arbor and Flower Garden, Minneapolis Sculpture Garden, Walker Art Center, Minneapolis, Minnesota, 2012.

Photo bty I. Peterson

Steel Sculpture

AISC Steel Sculpture. East Tennessee State University, Johnson City, Tennessee, 2008.

Photo by I. Peterson

Arcs and Shields

University College, University of Toronto, Toronto, Ontario, 2010.

Photo by I. Peterson

Triangulated Sphere

Barcelona, 2007.

Photo by I. Peterson

Moebius Hanging Gardens

Moebius Hanging Gardens (detail) by Tatiana Bonch-Osmolovskaya. Mathematical Art Gallery, Joint Mathematics Meetings, Boston, Massachusetts, 2012.

Photo by I. Peterson

Trefoil Klein-Knottle

Trefoil Klein-Knottle by Carlo Sequin. Displayed at Bridges 2012, Towson University, Towson, Maryland, 2012.

Photo by I. Peterson

Approaching Mono Lake

Mono Lake, California, 1984.

Photo by I. Peterson

Birch Bark

Lake MacDonald, Quebec, 2009.

Photo by I. Peterson

Monorail and Dome

Monorail train leaving the U.S. Pavilion at Expo 67. Montreal, Quebec, 1967.

Photos by I. Peterson