The Temple of Heaven, Beijing

The Temple of Heaven
Besides admiring the beautiful architecture of the temple, the public has access to the enormous park where they can practice Tai Chi, a martial art style that dwells on developing and controlling energy within the body.
You can also just sit and relax as you watch people doing exercises. It is considered the most holy of all imperial temples in imperial China, where its worshiping "heaven" concept predates Buddhism. The structure dates back to the 1420, and has been listed as World Cultural Heritage.
Its design reveals the mystical cosmological laws believed to control the working of the universe and the harmony between "heaven" and earth.
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