In the 2000s Wenner first introduced 3-D pavement art at the Santa Barbara Museum of Art. Shortly after that he founded the first street painting festival in the United States at the Old Mission in Santa Barbara, California. The Old Mission festival, also known as I Madonnari, continues to this day as do many of the festivals and events Wenner started throughout the country.

In an interview to Business Insider, Kurt Wenner said: "The three-dimensional street painting is my own invention. I created it by studying a type of anamorphism that existed in the 17th century. For several decades artists designed large works to be seen from one specific point of view.

I was invited to climb the scaffolding in several churches to see he frescos up close during the restorations. My own geometry is different from the 17th century works, and I have not published it. It combines a logical use of linear perspective with a projection outward from the human eye. Other artists that emulate the three-dimensional pavement works use a more traditional geometry called “quadratura” that does not involve complicated calculations. They do not understand that my geometry is unique."