Mystery Walk was created in 1984.
The Wyvern Mystery was created in 2000.
Mystery ER was created in 2007.
The Loudwater Mystery - film - was created in 1920.
The Mystery of Alexina was created on 1985-01-10.
I Love a Mystery - film - was created on 1945-01-25.
You need the cheat 'Walk Trough Everything' then if you walk further out of the real place you get in the Mystery Zone
No Mystery was created in 1975-01.
Mystery-Bouffe was created in 1969.
A Perfect Mystery was created in 2000.
The Wickham Mystery was created in 1931.
The Gunsaulus Mystery was created in 1921.
Mystery House was created in 1980.
Mystery Hours was created in 2000.
Mystery Jets was created in 2004.
Mystery Game was created in 1993.
The Solitaire Mystery was created in 1990.
The Wyvern Mystery was created in 2000.