There are many beautiful and challenging places around the world. By knowing and seeing these places, everybody can feel free and united with nature. In the end, everybody wants to keep this planet beautiful and safer for their grandchildren in the future.

By visiting these places, they can also see variety culture and people around the world. They can make frienships with all people in different places, give information each other, and more understanding between them.

Finally, by visiting and challenging this beatiful world, our future will be better and peaceful.