Lego has officially revealed its largest set ever, which has a price tag of $800 and is reported to have over 12,000 pieces. The set is identified as the Sagrada Família by some outlets, but there is conflicting information about the size and name of the largest set, with one report mentioning a 9,000-piece Titanic ship model and another referencing a Lord of the Rings set. The details of the largest set are not consistently reported across outlets.