Here is the list of challenges from 2016. All challenges remain open. Feel free to browse and contribute to any past challenges.
November 24, 2016: Thankfulness
November 17, 2016: Small Towns
September 1, 2016: No challenge
August 25, 2016 challenge: Happiness Is…
August 18, 2016 challenge: Cut by a River
August 11, 2016 challenge: Under the Lights
August 4, 2016 challenge: Natural Monuments
July 28, 2016 challenge: Waterfront
July 21, 2016 challenge: Eateries
July 14, 2016 challenge: Out in the Country
June 23, 2016 challenge: Clocks
June 9 & 16 2016: no challenge (on vacation)
June 2, 2016 challenge: Phone-tography
May 26, 2016 challenge: Fresh Baked
May 19, 2016 challenge: Rain Drops
May 12, 2016 challenge: Towers
May 5, 2016 challenge: Silhouette
April 28, 2016 challenge: A Different Focus
April 21, 2016 challenge: Mass Transit
April 14, 2016 challenge: Reflective Surfaces
April 7, 2016: no challenge (on vacation)
March 31, 2016 challenge: Birds
March 24, 2016 challenge: Signs
March 17, 2016 challenge: Get Your Green On
March 10, 2016 challenge: Pie or Pi
February 25, 2016 challenge: Bridges
February 18 2016 challenge: Thirds Rule
February 11, 2016 challenge: Perspective
February 4, 2016 challenge: Pets
January 28, 2016 challenge: Teasing
January 21, 2016 challenge: Romance