Mongolia

HIKE HE SINGING SAND DUNES OF THE GOBI DESERT, MONGOLIA
When Marco Polo travelled across the Gobi Desert, some 750 years ago he was scared for dear life because he thought the sound of the sands were the sounds of evil spirit.  Well Khongoryn Els sands dunes of Mongolia’s Gobi Desert have this rather odd habit of, singing, which is not normal for sand dunes. It’s a fairly rare phenomenon and just about 30 dunes worldwide are musically inclined — the rest are pretty quiet.   It's more of a constant low rumbling moan, with the occasional booming explosion - but it makes for a slightly odd encounter in the desert. Scientist said it’s something to do with the curve of the sand dunes forming a natural amphitheatre.