Related Clues:

• Like old college walls
• Covered with plants, perhaps
• Like many campus buildings
• Covered with creepers
• Like some university walls
• Like the outfield walls at Wrigley Field
• Halls of learning, sometimes
• Covered with climbers
• Like Wrigley Field's walls
• Covered with certain vines
• Covered in vines
• Crawling with creepers
• Vine-covered, as college walls
• Like a vine-covered wall
• Like some campus walls