The LEGO Marvel Advent Calendar 2026 (76340) is a collectible building toy set from Denmark. This calendar includes a variety of LEGO minifigures and accessories based on popular Marvel characters, allowing fans to build and play with their favorite superheroes in a fun and thrilling way. With each day leading up to Christmas, the calendar offers a new surprise behind each door, making it an exciting and engaging toy for children and LEGO enthusiasts alike.