Unlike       conventional cemeteries that are laid out as neat rows in grid like       patterns, the St. Louis No. 1 is a unique, twisting labyrinth of narrow       walkways. These narrow footpaths wind their way through serenely beautiful       marble mausoleums, massive wall vaults, and dilapidated unmarked tombs.       Walking through this ancient necropolis in the wee hours of the morning       can be an unnerving and eerie experience, in fact many visitors have       reported strange encounters with the spectral inhabitants of the       graveyard.
Since       1881, an apparition of the Voodoo Priestess, Marie Laveau, has       materialized many times in the narrow passages of the cemetery. Her tomb       has become a shrine to those interested in Voodoo or the occult. In the       cover of darkness, practitioners perform secret Voodoo rituals.       Practitioners often leave small offerings, scratching three Xs with a       piece of soft red brick on the crypt and knocking three times on the wall       of the tomb; believers do this to request special       favors or invoke spells.
       Marie Laveau was said to have been well over 100 years old when she died,       yet she was reported to have been as beautiful and vibrant as any 25 year       old woman.  It can only be assumed that her devotion to the practice       of Voodoo held the secret to her eternal beauty.  Perhaps it is the pursuit of       this enduring youth and beauty that       compels the Voodoo practitioners to pay homage to Marie Laveau to this       day. 
With       numerous unmarked and crumbling tombs within the necropolis, unexplained       phenomena seems to be common place. Strange mournful sounds emanating from       the cavernous crypts and inexplicable glowing vaporous masses have       startled countless numbers of people wandering the ancient cemetery. In       one area of the cemetery, the ghostly image of a mans face frequently       appears on the wall of a tomb, as if he is looking out from someplace on       the other side of reality.
Note:       St. Louis cemetery No. 1 is the oldest surviving necropolis in New       Orleans, it is a preservation project of the National Trust for Historic       Preservation, defacing or marking the tombs such as described above is       considered vandalism and could result in fines or your arrest. 
   Use your       better judgment; dont do it.
Read More Other Unsolved Mysteries article!