Dinosaur Land

This big land is the setting of Super Mario World and is home to many species of animals. Yoshis live on Yoshi's Island and other parts of this land. It contains a mountain, a forest, a hollow inside dome, and also an underground valley. Bowser and the Koopa Troop took over Dinosaur Land and trapped the yoshis in eggs. Bowser built a castle in the underground valley and took Princess Peach with him. [Mario] eventually defeats Bowser and his army and restores Dinosaur Land.

Areas
Yoshi's Island- The main home of the yoshis and Yoshi also has a house here. There is a mountain to the west that contains the Yellow Switch Palace. Castle #1 is here.

Donut Plains- A flat land that is shaped like a donut with a lake in the center. It contains the Green Switch Palace that is hidden. Also there are two Ghost Houses that one can only be reached by going into the lake. You can go through levels all the way around, or head for the secret areas by going through the lake. Castle #2 is here.

Vanilla Dome- A large like mountain that has a hollow inside. The inside contains diamonds shining off the walls. There is a lake in the center. There is a Ghost House. If you use the Red Switch Palace you can go into a pipe and head out of the top of the dome on the outside. Vanilla Dome contains Castle #3.

Cheese and Butter Bridges- Both large Bridges connect from the Vanilla Dome to Cookie Mountain. The levels contain many Power Saw like enemies that try to kill you. Below is Soda Lake, a level you can go to.

Cookie Mountain- A tall mountain rising from the ocean. Many enemies from the Koopa Troop are here including the Sumo Bro. Creatures called Monty Moles come up from the ground trying to attack you. After you defeat Ludwig and try to blow up Castle #4, the castle instead goes flying like a rocket and hits a smiling bush on the other end of the mountain. In the overworld you can see where the castle landed on the bush and is covered with a bandage.

Forest of Illusion- This perplexing forest can have you going in circles if you don't know which path and exit to take in a level. Depending on which Exit you take in a level determines which path opens up in the forest. If you can get to the level at the bottom of the screen, you need to go through the level and go into the pipe next to the Charging Chuck and use the Key. A path will open leading you right to Castle #5.

Chocolate Island- A land that is made out of chocolate! This land can be puzzling also. To proceed after the Ghost House, the next level you need to run through it as fast as possible, and when you get past the Parakoopas in time and go through the second pipe. Charging Chucks will throw baseballs at you. Evade them and go to the right to get the Key. After grabbing it you will be be able to get to a pipe in the overworld. After going through the special area you can get to Castle #6

Sunken Ship- This is one level in the water. It is a sunken pirate ship. Going through a pipe to enter the interior of the ship Boos appear. These Boos disappear and reappear changing the path in front of you. You must stop swimming when they appear and start swimming when they disappear. Go through the pipe on the right. As you fall down grab the Starman to help knock out the falling enemies. Dodge the Spike balls as you fall and land on the green switch. After that, in the overworld a giant statue of Bowser appears and Mario goes into its mouth sending him underground, under the sea floor into the Valley of Bowser.

Valley of Bowser- A large valley that is under the center area of water of Dinosaur Land. This valley is under the seafloor and contains Bowser's newer castle. Strangely lightning bolts can be seen in the back. A large city of Mega Moles is here too. Castle #7 is here too. Be careful in Bowser's new castle. There are different doors to take. Then you fight him on the roof. See the weapon he uses.