Here is the list of challenges from 2017. All challenges remain open. Feel free to browse and contribute to any past challenges.
December 28, 2017 challenge: Signs
December 21, 2017 challenge: Reflection
December 14, 2017 challenge: Purple
December 7, 2017 challenge: By Firelight
November 30, 2017 challenge: Blue Skies
November 23, 2017 challenge: Directional
November 16, 2017 challenge: Jewel Colors
November 9, 2017 challenge: Crossed Lines
November 2, 2017 challenge: Thanks, Dad
October 26, 2017 challenge: Halloween
October 19, 2017 challenge: Hidden Treasures
October 12 2017 challenge: Under Glass
October 5, 2017 challenge: Picture in Picture
September 28, 2017 challenge: Off the Beaten Track
September 21, 2017 challenge: Signs of Fall
September 14, 2017 challenge: Made by Hand
September 7, 2017 challenge: Recreation
August 31, 2017 challenge: Literary Reference
August 24, 2017 challenge: History
August 17, 2017 challenge: Tender Moments
August 10, 2017 challenge: Vibrant
July 31, 2017 challenge; Off-Center
July 20, 2017 challenge: At the Edge
July 13, 2017 challenge: Birds
July 6, 2017 challenge: Mountain
June 30, 2017 challenge: Aquamarine
June 22, 2017 challenge: Threes
June 15, 2017 challenge: Boats and Ships
June 8, 2017 challenge: Moving Waters
June 1, 2017 challenge: Yellow
May 25, 2017 challenge: Golden Hour
May 11 & 18, 2017: on vacation – no challenge
April 27, 2017 challenge: Black & White
April 20, 2017 challenge: Music
April 13, 2017 challenge: Extravagance
March 30, 2017 challenge: Two Materials
March 23, 2017 challenge: Spring
March 16, 2017 challenge: It All Depends on What You Want
March 9, 2017 challenge: Hands
March 2, 2017 challenge: View from My Front Porch
February 23, 2017 challenge: Edible
February 16, 2017 challenge: Red
February 9, 2017 challenge: Details
February 2, 2017 challenge: Texture
January 26, 2017 challenge: Ice, Ice, Baby
January 19, 2017 challenge: Just Missed
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