There are 7 attractions at Disney's Animal Kingdom we rate as "Not To Be Missed":

Not To Be Missed at Disney's Animal Kingdom
Africa Festival of the Lion King
Kilimanjaro Safaris
Asia Expedition Everest - Legend of the Forbidden Mountain
Finding Nemo - The Musical
Discovery Island It's Tough to Be a Bug!
Wilderness Explorers

Not To Be Missed Attractions at Other Parks