How about step up to the top of the Greal Wall of China

Snaking View of The Great Wall of China
Photo by:rarbol2004

The Great Wall of China is the one of the most popular landmark in Beijing. It attracts a lot of tourists every year.
Actually, as a resident of Beijing, people could regard climbing the Great Wall as an every day exercise. This shows the Great Wall is not just for sightseeing, it could have some real values to benefit people.
In fact, it was built to discover the danger and protect people in the war. Nowadays is a time of peace, so the Great Wall could use to benefit people from many different perspective.