Lewis was appointed as director-general of the
Tennessee Centennial Exposition, held a year late in 1897. In particular, he was known to have suggested that a reproduction of the Greek Parthenon be constructed as the centerpiece of Nashville's exhibit and the Exposition. Nashville was nicknamed the "Athens of the South." Its rival Memphis constructed a reproduction of a pyramid. Both exhibits were lit at night and were next to each other on the shore of
Lake Watauga. Lewis supported the retention of the popular
Parthenon after the exposition closed. (In the 1920s, it was reconstructed in permanent materials and adapted for use as an art museum in the park.) The exposition grounds became
Centennial Park, which Lewis helped develop along with
Shelby Park. On April 19, 1909, Lewis conducted the dedication of the
Sam Davis Statue outside the
Tennessee State Capitol. Lewis was the first vice president of the Nashville Art Association. He was a member of the Park Commission for the City of Nashville from 1910-1912. ==Death==