Pictures: Carnival around the world
Carnival season technically begins on Jan. 6, also known as Twelfth Night and runs through Mardi Gras, which falls on Feb. 17, 2015, the Tuesday before Ash Wednesday. Big celebrations around the world usually occur in those final two weeks, but some happen earlier.
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Carnival in Rio de Janeiro
Revelers of the Unidos da Tijuca samba school perform during the second day of carnival parade in the Sambodrome in Rio de Janeiro, Brazil on February 17, 2015.