无论是坐公交车还是坐火车,路过永定门的时候,都会看到一座立着石碑的高台,它被称为燕墩。进了永定门,东是天坛,西是先农坛,您可能会认为,在北京中轴线上的皇家建筑游览观光就从这左右对称的皇家祭祀群开始,它们是中轴线上皇家建筑交响的序章。若您能有机会登上燕墩,是否还会这么想呢? Whether it is by bus or by train, passing by Yongding Gate, you will see a towering tablet platform, which is called Yandun. Into the Yongding Gate, the east is the Temple of Heaven, the west is the first agricultural altar, you may think that in the central axis of Beijing’s royal architectural sightseeing tour from this symmetrical royal sacrificial group began, they are on the central axis of the royal architectural symphony Prologue. If you have a chance to board the pier, whether it will think so?