Liberty Gardens is an abandoned two-level mall in Boston where Ellie and Riley spend a night together in Left Behind's flashback chapters. You explore it in Mallrats and Fun and Games, and it gives the final chapter, Escape from Liberty Gardens, its name.
Twenty years of weather and neglect have left broken skylights and windows, and plants and trees have taken over the humid concourses. Looters stripped it long ago.
Ellie and Riley, reunited after more than a month apart, find the remains of their friend Winston's camp, play around in Spooky Town and visit the arcade. Turning the power on draws the infected toward them.
The chase ends with both girls bitten. This is where Ellie gets the bite she still carries when she meets Joel.
Colorado Mountain Plaza
Colorado Mountain Plaza is the snowbound mall near Boulder where Ellie hunts for medical supplies in Left Behind's present-day chapters. You play Back in a Flash, So Close and The Enemy of My Enemy here, fighting both infected and hostile survivors.
Raja's Arcade
Raja's Arcade is the arcade inside Boston's Liberty Gardens mall that Ellie and Riley visit in Left Behind. Ellie has always wanted to play the fighting game The Turning, and the arcade is the setting for one of the DLC's best-known scenes.
Boulder
Boulder, Colorado is where Joel and Ellie search the University of Eastern Colorado for the Fireflies in The University chapter. Left Behind's present-day story picks up nearby at the Colorado Mountain Plaza mall, so this region covers both the campus and the mall.
Silver Lake
Silver Lake is a snowbound Colorado resort town and the setting of the Lakeside Resort chapter, where Ellie is playable for most of the winter. A group led by David lives here. Its surroundings include an abandoned coal mine and the Whitefish Lake rest area.