Nature and landscape
There are a lot things that can prove the existence of God.
The way the world appear and how the earth looks is a very good prove that the world was planned and made by someone more superior than human. Human cannot not fully give perfect explanation of the origin of the world unless revealed to us by supernatural being. This is because the world existed several days or years before man. The earth naturally was design with beauty and wonderful Outlook.
Who really design it?, I suggest that the person is higher than man.
This an example how God design nature. More example
Anyway there are a lot of things to prove that there is God.
What do you think.
Do you believe that there's a God, that design nature?