Tall Mountain is a tall purple mountain that appears as the destination. In Call Me Mr. Riddles, everyone successfully solves the Silliest Riddle here.
- The tall Mountain was the last place Dora and Boots went to on 2 episodes.
- The first time they went there, was when they had to take Little Star home to the moon.
- The next time they went there, was when they were joined by Benny, Isa, Tico and Big Red Chicken as they were trying to solve the silliest riddle.