Carnival and Mardi Gras celebrations around the globe

The annual Christian feast celebrates the beginning of the Lenten season.

Revelers take part in a Carnival parade in downtown Lisbon, Tuesday March 4, 2014. (AP Photo/Francisco Seco)

Revelers take part in a Carnival parade in downtown Lisbon, Tuesday March 4, 2014. (AP Photo/Francisco Seco)

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