Chudnite Mostove also known as Skalnite Mostove (the first name means "Wonderful Bridges" and the second - "The Rock Bridges") is a rock phenomenon, situated in the karst valley of the river Erkyupriya in the West Rhodope mountain on 1450 above sea level.
In the past, the bridges had been one entire cave which collapsed with time, thus forming majestic marble bridges.