Good day good people

I'm beginning to plan my trip around the world and what I really would like to do is going to every continent and pick the best hikes to go. So I thought why not ask the people who are around the world where the best hikes are.
Give me your best ideas I am open to any country in the world whether it's about the hard climb or the magnificent scenery. I love different hiking as well, such as glacier, cave or jungle.
I would love to hear about your travel/hiking stories if you have any and if it's possible for me to replicate them.
Thanks in advance.

Here's a pic I took of my brother when we hiked to a volcano eruption.