A number of eye-catching dream schemes had been earmarked for the city in years gone by. But these grand plans never got off the ground and remained a fantasy. A theme park in the sky, cable cars ...

is putting on the 15th SoMardi Gras Parade, Street Festival and Beard Contest 10:30 a.m.-5 p.m. Saturday, "set to transform the streets of SoMa into a disco fever dream," according to a news release.