The homeowner next door has an ugly, poorly built 14 inch high concrete chainwall that runs the length of our property line. They recently put up a cedar fence in the ground on their side of the chainwall. We are left looking at the back of their fence, then a gap of about 3 inches (filled with dirt) and then the ugly, uneven, cracked chainwall. I was thinking about covering the chainwall by building a wooden bench or raised garden bed or something else to hide the concrete chainwall and turn it into something useful. Any suggestions?