There are 8 attractions at Disneyland we rate as "Not To Be Missed":

Not To Be Missed at Disneyland
Adventureland Indiana Jones Adventure
Critter Country Splash Mountain
Frontierland Big Thunder Mountain Railroad
Main Street, U.S.A. Paint the Night
New Orleans Square Haunted Mansion
Pirates of the Caribbean
Tomorrowland Hyperspace Mountain

Not To Be Missed Attractions at Other Parks