Quick! What's the most amazing incredible experience you could ever do at Disneyland? Club 33? While that would be nice, hundreds of people dine there regularly. Seeing Walt's apartment above Main Street? Getting closer, but there are a few Disney sponsored tours that can get you up there.
You've read the title, so you already know my answer. Experiencing the Disneyland Dream Suite! This ultra rare and exclusive prize was given out during the Year of a Million Dreams in 2008.
One of the most amazing parts of the Dream Suite was the Master Bathroom.