FindAGrave.com is a fantastic genealogy research tool.  Thanks to the multiple parameters of their search engine, you have a good chance of finding the burial location and possibly a photo of their headstone IF your ancestor’s grave is included in the ever growing database of approximately 87 million listings.  Occasionally, you’ll find that someone has posted a photo, obituary, death certificate, and other valuable genealogy information about the deceased.  Always remember though … data included on headstones, obits, and death certificates is typically provided by well-meaning relatives or neighbors of the deceased and should be verified from another source.