Sports
LEGO® Sports is a now-discontinued LEGO® theme that ran from 2000 to 2007. The theme revolved less around large structures and more around sports action and games: think football/soccer as a base, later expanded to include basketball, hockey, and Gravity Games (snowboarding/skateboarding).
What makes LEGO® Sports sets so recognizable is that many have play functions that allow you to actually "shoot," "pass," or "score." In the early stages, the focus was on soccer, partly because foosball-like games were popular at the time. Through licensing, some sets could also display official sports logos (e.g., NBA/NHL).
Hockey is a nice exception within the line: the first hockey sets even used special figures made of Technic/Bionicle components instead of regular minifigures, and the line was linked to the NHL. This makes certain sets particularly interesting for collectors looking for unique components and variations within LEGO® Sports.