Piece by piece, Denver's built environment is getting a makeover — but Save the Signs is working hard to make sure that the city's commercial history is not lost in the changes. A few years ago, photojournalist Corky Scholl began sharing images of the vintage illuminated signs that once greeted travelers along Colfax Avenue on Facebook. These days, Scholl uses the social-media hub as a way to get the word out about endangered neon signs across the country. He's also expanded his project to include photos, stories and videos about the architects and artists who contribute to Denver's visual urban landscape. More than just a place to commune online and talk about the Mile High City's good ol' days, Save the Signs is also a nonprofit that raises money to restore classic signage. Scholl's efforts have saved the wacky neon of Colfax icon Sid King's Crazy Horse Bar and downtown jazz joint El Chapultepec's glowing corner sign, among others.