The document provides summaries of various carnivals around the world, including:
1) The carnival of Rio de Janeiro, Brazil known as the largest carnival in the world marked by the crowning of King Momo and culminating in the Samba Parade.
2) The carnival of Venice, Italy consisting of grand balls and parades where people wear elaborate costumes and masks allowing all people to be treated equally.
3) The carnival of Santa Cruz de Tenerife, Spain which has two parts - an official carnival with over 100 groups and a street carnival for public participation.