custom map help

I am asking all the people of planet minecraft what you would want to see in a custom map. I want to expand my custom maps past puzzle maps and on to adventure maps. Before i can i need you guys to give me ideas. Please tell me your ideas and i will take all of them into consideration but i need your help and support first.

ABSOLUTELY NO COMPLEXES. i want an adventure map not you getting stuck in a building solving puzzles. I do want buildings. some quests can be placed in buildings but i dont want the entire map in a bulding. Subscribe to see if your suggestions makes it to one of my custom maps.