Children huddle in front of the 2014 soccer World Cup logo in Fortaleza, Brazil (AP Photo/ Martin Mejia)
Young fans of the Mexican national soccer team celebrate by the Independence Monument after their team tied with Brazil in their 2014 World Cup soccer match, in Mexico City (AP Photo/ Rebecca Blackwell)
Children cheer for Croatia as they watch the world cup match between Croatia and Brazil at the Croatia Cleveland Soccer Club (AP Photo/ Tony Dejak)
Syrian refugee children play soccer as others watch at the Zaatari refugee camp in Mafraq near the Syrian border in Jordan (AP Photo/ Raad Adayleh)
Pakistani children play soccer during celebrations for the World Cup in Karachi's slums (AP Photo/ Fareed Khan)
Children play football at their school in Soweto, South Africa (AP Photo/ Denis Farrell)
Children watch the World Cup opening match between Brazil and Croatia in an alley at the Mangueira slum, in Rio de Janeiro, Brazil. (AP Photo/ Leo Correa)
Children in Brazilian colors watch the group F World Cup soccer match between Iran and Nigeria at the Arena da Baixada in Curitiba, Brazil (AP Photo/ Michael Sohn)
Children play soccer barefoot in front their homes in Tibau do Sul, near Natal, Brazil (AP Photo/ Hassan Ammar)
Children play barefoot soccer in a muddy field in Natal, Brazil (AP Photo/ Hassan Ammar)
Children play soccer in front their homes in Tibau do Sul, near Natal, Brazil (AP Photo/ Hassan Ammar)
Children play soccer on a street decorated with World Cup related murals in Mangaratiba, Brazil (AP Photo/ Antonio Calanni)
Kids play soccer at the Cantagalo slum in Rio de Janeiro, Brazil (AP Photo/ Felipe Dana)
Children play soccer next to mounted police outside the Independencia Stadium (Photo/Victor R. Caivano)
Children play soccer prior to the group G World Cup soccer match between the United States and Portugal at the Arena da Amazonia in Manaus, Brazil (AP Photo/ Themba Hadebe)
Children kick around a soccer ball outside the Independencia Stadium in Belo Horizonte, Brazil (AP Photo/ Victor R. Caivano)
Children hold hands as they leave the pitch after the game opening ceremony they took part in at the beginning of the group H World Cup match between South Korea and Algeria (AP Photo/ Michael Sohn)
UNICEF ambassador Sergio Ramos, of Spain's national soccer team, poses for a picture with children during a promotional event for the children's charity (AP Photo/ Manu Fernandez)
Members of the Italian national soccer team meet children prior a training session in Natal, Brazil (AP Photo/ Antonio Calanni)
Italy's players, from left, Gianluigi Buffon, Mario Balotelli, and Daniele De Rossi pose for photos with children prior to training in Mangaratiba, Brazil (Photo/Antonio Calanni)
Flavio Aquino, of San Diego, holds up a sticker book with portraits of the U.S. men's soccer team players as children gather around outside the Sao Paulo FC training center (AP Photo/ Julio Cortez)
Hazel Petite shows a 2014 World Cup album edition at a meeting of collectors in Caracas, Venezuela (AP Photo/ Ramon Espinosa)
The World Cup craze isn't just for grownups. Find out how kids in Brazil and around the world are celebrating football.