• San Francisco Museum of Modern Art, 2011 (#3111.5)
  • Embarcadero Center stairs, San Francisco, 2014 (#3143.22)
  • Royal Cafe, Albany, CA, 2014 (#3145.9)
  • Most popular painting, National Gallery of Art, London, 2016 (#3168.26)
  • Diana, National Gallery of Art, London, 2016 (#3168.5)
  • Glass ceiling, Embarcadero Center, San Francisco, 2014 (#3143.3)
  • San Francisco Museum of Modern Art, 2011 (#3111.11)
  • San Francisco Museum of Modern Art, 2011 (#3111.1)
  • BART station stairs, San Francisco, 2011 (#3112.26)
  • Shadows and silhouettes, Berkeley, 2011 (#3115.25)
  • San Francisco Museum of Modern Art, 2011 (#3111.9)
  • Office buildings on Market Street, San Francisco, 2011 (#3112.21)
  • Golden Gate Bridge, San Francisco, CA, 2000 (infrared) (Image #3009.32)
  • Houses of Parliament and Westminster Abbey, London, England, 2001 (infrared) (Image #3012.34)
  • Flying lady and dolphin at Tower Bridge, London, England, 2001 (infrared) (Image #3013.12)
  • Boboli Gardens, Florence, Italy, 2004 (infrared) (Image #30418.32)
  • Victoria Tower Gardens, London, England, 2004 (infrared) (Image 330419.5)
  • Halleck Street, San Francisco, CA, 2004 (infrared) (Image #3045.13)
  • Leidesdorff Street, San Francisco, CA, 2004 (infrared) (Image #3045.8)
  • Big Ben clock tower, London, England, 1996 (hand colored) (Image #69610.9.hc)
Thumbnail panels:All photos copyright Bill Helsel 2019 
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