When a Sim has grown a full beanstalk, they can climb up it to find a cloud with a giant Will Wright sleeping next to a spilled can of beans, which they are able to pick up as the "magic beans" ingredient.
Sims at college, in The Sims 2: University gain access to the Secret Society Club House when they befriend three or more members of the Secret Society. This lot contains a variety of career rewards and aspiration rewards. Each campus has a different Club House. After gaining membership, the Sim can go to the Club House anytime they want by using the phone.
In The Sims 2: Apartment Life, a secret neighborhood called "The Magical World" is added. It is only accessible by witches. There are two lots, where you can meet the head witches, buy reagents from them, and use their thrones, cauldrons and spell books. These lots are:
In Belladonna Cove there is a replica of Baba Yaga's hut. Looking closely, there are even chicken footprints in the ground behind it. Find it by pressing tab and turning the camera towards the sea, push it all the way to the left corner of the screen to see the secret lot. It is called Watervista Palace, and with careful maneuvering may be placed in the Lots & Houses Bin (Easier if edge scrolling is off.) The hut so far has no known point, just a secret someone tossed in as an Easter egg. It is well furnished with a bedroom, a kitchen/ living room, and a small bathroom. It costs about 40,000 simoleons.