Editor's note: This story was published Nov. 3, 2016. We're bringing it back just in time for All Souls' Day.
Brazil's Zombie Walk celebrants shuffle down the streets of Brazil's major cities yearly to commemorate All Souls' Day -- also known as the Day of the Dead.
It's one of several zombie-themed events that happen every year in Brazil.
People dressed as zombies participate in the walk in Sao Paulo, Brazil, on Nov. 2, and hundreds of people hit the streets of Rio de Janeiro in their zombie best.
Wait, what's the Day of the Dead?
Dia de los Muertos is a traditional celebration that originated in central and southern Mexico, the last of a three-day Catholic holiday that starts with All Hallow's Eve (Halloween) on October 31, All Saints Day on Nov. 1 and All Souls' Day on Nov. 2.
Families typically celebrate Dia de los Muertos by visiting the graves of family members and ancestors. Scholars trace the origins of the holiday to an Aztec festival later adopted by the church.
Participants dressed as flesh-eating zombies.
Adults and children gathered in the streets.
For some, the Zombie Walk makes the Day of the Dead a happy celebration.
Each year the event is organized through social media.
It attracts hundreds of participants.
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