Every town has its own traditions, but San Luis Obispo found one that really sticks: Fixing a wad of chewed-up gum onto the walls of Bubblegum Alley. Some call it art, others call it gross — but most ...

Gum chewing may be going out of style, with overall sales down in the U.S., but there's one place where it's still poppin': California's Bubblegum Alley. For decades, visitors have smashed gum on the ...