Infrared.

The Comecos Cemetery is a collection of fake headstones (made of real stone) with epitaphs that range from the silly to the goofy to the groan-inducing. The funny, fake cemetery was originally created by a veterinarian and his wife, Dan and Eleanor Roberts, at their home and clinic in Wichita Falls, Texas. After he retired, the "cemetery" was temporarily moved to Iowa Park, Texas. He later decided to relocate it to Granite in Oklahoma, the town where the headstones originated from. The site was dedicated there on November 4, 2006.