Fort Montagu

Fort Montagu, The Bahamas, 1969.

Photo by I. Peterson

Sheep Dog

Sheep station, Australia, 1979.

Photo by I. Peterson

Neptune Blue

Neptune Blue Macchia by Dale Chihuly. Sibley Memorial Hospital, Washington, D.C., 2017.

Photo by I. Peterson

Killer Riffs

Killer Riffs by Jim Lapaso. Austin, Texas, 2009.

Photo by I. Peterson

Beady Deltahedron

Twisted Deltahedron by Gwen Fisher. Displayed at Gathering 4 Gardner 10, Atlanta, Georgia, 2012.

See also "Chaos and Order in Beads," "A Tetrix at Burning Man," and "Symmetries of Beaded Beads."

Photo by I. Peterson

Lower Yellowstone Falls

Lower Yellowstone Falls. Yellowstone National Park, 1999.

Photo by I. Peterson

Sky Ears

Green Bank, West Virginia, 1977.

See also "Parabolic Detection."

Photo by I. Peterson

Columbia Sunflowers

Columbia River Valley, Washington, 1977.

Photo by I. Peterson

Headquarters Guard Duty

George Washington's Headquarters (Isaac Potts House). Valley Forge National Historical Park, Pennsylvania, 1979.

Photo by I. Peterson

Toronto Streetcar

Streetcar. Toronto, Ontario, 1974.

Photo by I. Peterson

Bike Rack Symmetry

Bike rack. East Tennessee State University, Johnson City, Tennessee, 2008.

Photo by I. Peterson

Standing Glass Fish

Standing Glass Fish by Frank Gehry. Walker Art Center, Minneapolis, Minnesota, 2012.

Photos by I. Peterson

Stepping Stone

Rock Pine Station by George Trakas. Sarah Lawrence College, Bronxville, New York, 2009.

Photo by I. Peterson

Dividing Line

Photo by I. Peterson

Wall Pyramids

Wall Drawing No. 623 by Sol LeWitt. National Gallery of Canada, Ottawa, Ontario, 2000.

"Double asymmetrical pyramids with colour ink washes superimposed."

See also "Stairwell Drawing."

Photo by I. Peterson

Squared Octagon

Folk art pattern.

Photo by I. Peterson

Nested Sphere

Centro Cultural Tijuana, Tijuana, Mexico, 2008.

Photo by I. Peterson

San Jose Sunrise

San Jose, California, 2006.

Photo by I. Peterson

Moire Pursuit

Dioximoirekinesis by Irving John Good and Martine Vite. Exploratorium, San Francisco, 2014.

See also "Square Pursuit."

Photo by I. Peterson

Propeller Pillar

Captain Nemo's Accumulation by Arman (Armand Fernandez). Virginia Museum of Fine Arts. Richmond, Virginia, 2017.

Photos by I. Peterson

Ferry Crossing

St. Lawrence River, Quebec, 1974.

Photo by I. Peterson

Geometric Gravity

Quark Park, Princeton, New Jersey, 2006.

Photo by I. Peterson

Czech Dylan

Prague, Czechoslovakia, 1985.

Photo by I. Peterson

Retro Deco

The Gregory Lofts, Pearl District, Portland, Oregon, 2014.

Photo by I. Peterson

Bird of Paradise

Bird of paradise flower (Strelitzia), 1979.

Photo by I. Peterson

Dome Symmetries

Union Trust Building, Pittsburgh, Pennsylvania, 2010.

See also "Numerology of Dome Skylights."

Photo by I. Peterson

Wind Gift

Gift of the Winds by Joseph C. Bailey. Market Street, Philadelphia, Pennsylvania, 2000.

Photo by I. Peterson

Fountain Flowers

Longwood Gardens, Kennett Square, Pennsylvania, 1978.

Photos by I. Peterson

Library Blocks

Robarts Library, University of Toronto, Toronto, Ontario, 1974.

Photo by I. Peterson

Thunder Bay Moon

Thunder Bay, Ontario, 1977.

Photo by I. Peterson

Lunenburg Mist

Lunenburg, Nova Scotia, 1974.

Photo by I. Peterson