How do you get to other worlds in wizard 101 without crowns?

In Wizard101, you can access other worlds without spending crowns by completing specific quests that unlock those areas. Additionally, you can join friends who already have access to the desired world and travel with them. Participating in events or promotions may also grant temporary access to certain worlds. Lastly, using the in-game currency known as gold to purchase access is another option for some worlds.