a leading African American enclave on the Westside. Third Street in downtown was converted into the Santa Monica Mall in 1965, an innovative but ultimately unsuccessful development that turned the three block core of the retail district into an open-air pedestrian mall. Large parking structures were built, but rarely filled. Within a couple of decades it was in severe decline. (The Santa Monica Mall, just prior to its conversion to the Third Street Promenade, is a location for some scenes in the movie, Pee-wee's Big Adventure). The Douglas plant closed in 1968, depriving Santa Monica of its largest employer. A decade passed before the site was redeveloped into an office park. The Museum of Flying was opened on the same site another decades later, in 1989. Bandleader Lawrence Welk built the Champagne Towers apartment building and the adjoining Lawrence Welk Plaza in 1969. The plaza is now known by its address, 100 Wilshire, and it is still the tallest building in the city. 1970s During the 1970s, a remarkable number of notable fitness- and health-related businesses started in the city. The Supergo bicycle shop (originally named Bikecology founded by Susan and Alan Goldsmith as a pro ten-speed bike shop opened in 1971, and was ranked the top grossing bike shop in America by the time it relocated from Wilshire Blvd to the corner of 5th and Broadway in 1995. And coincidentally work on the bicycle path along the beach was undertaken by the city. The Santa Monica Track Club, founded in 1972 by Joe Douglas, has helped the careers of many Olympians, such as Carl Lewis. Sensei James Field opened his dojo in 1974, which became one of the primary Shotokan karate schools in the US and is now called the Japan Karate Association (JKA) Santa Monica. Joe Gold, who had sold his chain of Gold's Gyms years before, started the World Gym chain in 1977. Nathan Pritikin opened the Pritikin Longevity Center in the Casa Del Mar building in 1978 after prior owner Synanon tried to murder attorney Paul Morantz by placing rattlesnake in his mailbox. https://www.thefix.com/content/aa-cults-synanon-legacy0009. Ocean Park resident Jane Fonda opened a small aerobics studio on Main Street. In the late 1970s, progressivism became the dominant political force in Santa Monica. Santa Monicans for Renters' Rights (SMRR) formed in 1978 and was led by Ruth Yannatta Goldway, Derek Shearer, Dennis Zane, and Reverend James Conn with support