The LEGO Marvel Super Heroes Seasonal theme (Advent Calendars) are annual LEGO sets released offering a countdown to Christmas. Each set includes 24 small builds, one to be opened and assembled each day from December 1st to December 24th. The calendars typically feature minifigures, tiny vehicles, and festive-themed items, providing a daily Marvel LEGO themed surprise in the lead-up to Christmas.
2021 LEGO Sets
In 2021, LEGO continued its trajectory of product expansion and innovation. One notable addition was the "LEGO VIDIYO" theme, introduced in partnership with Universal Music Group, which combined physical sets with a digital music video making experience. The company also expanded the "LEGO Art" series, allowing adults and older fans to create wall art based on various franchises. Existing themes like "Star Wars," "City," "Technic," and others received new set additions. Sustainability efforts were underscored with the announcement of prototype bricks made from recycled plastic.