The Buzludzha communist UFO monument built in the former Soviet era was once a landmark of Bulgarian communism. The shape of a flying saucer, the mosaic-covered roof, and the towering hills of the Balkans were once brilliant. Unfortunately, with the great changes in society, Zuzludzha has become a dangerous building at this time. The outer squares and sculptures have been destroyed, and the inner domes are also broken and mottled, leaving only a ruin. Although the weather was not satisfactory, it added a mystery to our expedition. The monuments in the rain and rain seem to come from the flying saucers in outer space. The government locked the door a few years ago to prevent tourists from entering danger. However, the small difficulties could not stop everyones strong curiosity, and finally found the entrance of the underground passage of one meter square, leaning against the waste chimney. Under the leadership of the team leader, the board climbed down the three-meter-high tunnel, and finally groped into the once glorious hall. The cold wind whizzed through the broken wall, and the thick fog made people feel like they were outside the earth. At first thought that the entry process would be very thrilling, so the camera didn't come with the camera safely. I regret it when I went in, because in addition to the high entrance, it is a little hard to climb down more than three meters, and the other links are not difficult, and it is too easy to come out here. Movie! The day we went, although it happened to catch up with the wind and rain, it was still foggy, but unexpectedly let the mysterious atmosphere here reach its peak!