The D&D Adventurers League is an ongoing official organized play campaign for Dungeons & Dragons. It uses the fifth edition of the Dungeons & Dragons rules, and features the Forgotten Realms setting. You can play D&D Adventurers League games at any place that features adventures bearing the D&D Adventurers League logo. You can create a character and bring that character to games anywhere D&D Adventurers League is supported.
Most D&D Adventurers League games are public, in-person play events. Typical venues for these events are game and hobby stores, conventions, and public-accessible game day events.