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The Cathedral Dome is an item in Mario is Missing!. It is one of the onion domes that tops St. Basil's Cathedral. It is stolen from the cathedral when a group of Koopa Troopas infiltrate Moscow. Luigi comes across the Dome on a Koopa Troopa that was carrying it around the city. He then shows it to some of Moscow's citizens, as he does not recognize it himself; every person points him in the direction of the cathedral while providing additional trivia, such as how the central structure is 107 feet tall (it is actually 47.5 meters tall, around 156 feet). Luigi eventually gathers enough information that he is able to return the Dome to its rightful place in the Cathedral through its information booth, receiving a $2250 reward for doing so. He also receives an additional $3000 if he returns the Dome first.