Do the landscape cover the bottom?
Do I put the building on or in the landscapes (ie)
yes the statements that u say are surely true.
I don’t understand your question.
Salutations ,
Landscapes are generally only used for the base “land” of your game and so all buildings should be placed on top of it as opposed to in it.
You shouldn’t really let the player see the bottom of a landscape.
Thank you very much for the info 
I was trying to figure out what would be the best landscape for the maze, I was thinking about jungle or a desert scene.
What would you use?
what ever U like but jungle would be a better solution.
Ok that sounds good thanks for your help
to much money for a jungle at this time
why do U require money for a jungle scene ?
@ There are a lot free stuff you can get from the marketplace. One of those is the open world demo collection by Epic games, which contains some trees, foliage, rocks and materials (stuff you’ll need for a jungle scene).
Just open the Launcher, click on the Marketplace tab and search for “open world demo collection” then download it and you can add it to your projects.