The first Houston Carnival celebrating Caribbean, Brazilian, Mardi Gras traditions is held on Discovery Green. A six-block parade of costumed carnival dancers and musicians occurred at 2 pm starting at Discovery Green and going past the Four Seasons Hotel Houston. br/ID: Batala Houston Drummers put on an enthusiastic show for onlookers.br/Saturday May 24, 2014 (Craig H. Hartley/For the Chronicle)