Partial challenge catalogue: these are supplied challenge groups, not a verified list of all 65 individual challenges. Exploration is not yet completable.
Track the published challenge groups and the Legacy Points you have earned.
Legacy Challenges cover multiple parts of the Forever journey, including leveling, professions, PvP, exploration, dungeons and raids. This lightweight tracker keeps completion state in your browser so you can plan your next goals without creating an account.
Challenge definitions are separated from the interface and can be refreshed from verified source data as Blizzard and Wowhead publish changes before and after launch.
Reference: Wowhead — Legacy Challenges overview.