Start to set up temple of Heaven in clear 18 years of Yung-loh(1420),273 hectares of total area, through clear ＪＩＡ JING  , pure Qianlong...etc. toward increase to set up, change to set up, the building grandiosity is magnificent, the environment is solemn and solemn and peaceful, is clear and pure two places of emperor" fiesta day"," the area north presents the circular, the south is a square, the implied meaning" the day is circularly square".The on all sides wreath builds two of wall of temple, ising divided into the whole inside two parts of, , main building concentration in inside temple .The main building inside the temple contain year palace, have no beam palace, long gallery etc., still have the echo wall, three sound stones, seven the star stone etc. the famous spot historic monument.Gather the clear and pure building technical skill temple of Heaven, it becomes greatly, is a Chinese thou to set up the delicacy, is the biggest fiesta in the world the day constructs the cluster.In 1998 were taught the section text organization how to be included in" the inheritance of world record" by United Nations.

Do you know?Four big and wonderful sounds that are temple of Heaven

tempel of Heaven inside of four big and wonderful sounds deserve your good research once.

  palace of the echo wall outside is on all sides to have a positive circular fence, this is an of famous echo walls, two persons stand on two  sides wall side of thing respectively, one person to soft-voiced and thin language of wall, another one person come close ear the wall noodles, clear like at make a phone call generally.Want to know why?Because the radian of this fence very regularity, the seamy side is again extremely smooth and neat, so a wave can follow the wall of inside the deliver, arriving another person's ear.

  B. Have a conversation the stone of to sound- if you stand to talk on a the 18 granite of the palace, the voice will spread to the far east of 36 meters to go together with the northwest that the northeast Cape and wests of the palace go together with the palace clearly, but talk the granite in these two corners that goes together with the palace up hear equally very clearly, this is" the dialogue stone" of to sound.

  C. Three  sound stones fold the sound- but before the step of" three  sound stones", if you stand on a piece of slab of stone the shot -or shout, see an echo for the audibility, stand and can hear two or three echoses on the second or the third slab of stones.This is because a distance dissimilarity that refracts back from a wall, so the echo number of times that hear is also different.Guess which slab of stone is the center of a circle of the echo wall?It is the third.The number of times of the echo in fact not only three, just the four tones hereafter die down out of hearing just.

  D. A heart stone of hollow- have a piece of slab of stone to call in the center of th a heart stone", stand at yell an up, what to follow is to return to long ago echo of.This is the reason that the sound wave refract.