Postojna Cave is a 20,5 km long Karst cave system near Postojna, Slovenia. It is the longest cave system in the country as well as one of its top tourism sites. In 1872...
#speology, #tourism, #travel, #world, #cave
Sunset, Horsetail Falls, Yosemite, California
#Sunset, #Horsetail Falls, #Yosemite, #California
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