The LEGO City 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 LEGO surprise in the lead-up to Christmas.
2006 LEGO Sets
In 2006, LEGO introduced several major themes while retiring others, marking a year of transition and innovation. One of the most notable additions was LEGO Batman, the company’s first full DC Comics collaboration, bringing Gotham’s heroes and villains into LEGO form. Another highly anticipated licensed theme was LEGO Avatar: The Last Airbender, based on the popular Nickelodeon series. However, despite its strong collector demand in later years, the theme was discontinued after just two sets, making them highly valuable today.