The Haunted Mansion attraction at Walt Disney World features tombstones inscribed with the names of real people. This series of posts called 13 Tombstones tracks down who those people are -mostly Disney employees whose names are now enshrined in the parks for posterity. Link -via Boing Boing
You should mention that the names on the tombstones aren't just any Disney employees, but the Imagineers (designers) that created the attraction.