From Ireland to Haiti, countries across the globe have their own festivals celebrating the afterlife, and the practices vary wildly from nation to nation.
While trick-or-treating and dressing up as ghosts are common practices in countries like the U.S., other places have their own twists on the tradition. The Cambodians, for example, forego the trick-or-treating altogether to race buffalo.
From Sardinia to Londonderry, here are 13 photos showing how people all over the world honour the afterlife.