Cities above the sea and floating mountains—can places get any stranger than these? All over the world, we are treated to several places which no one, in spite of hundreds of years’ worth of research, can ever explain. For the tourist that enjoys something different, these places are worthy of their time. From time to time, it is nice to have our reasons challenged, and just stare in wonder.

Sure, travel guidebooks abound, and every corner of the earth has been scoured, but these places somehow remain untouched because of their ability to defy reason. Furthermore, these places will challenge your perspectives, and change them. In a world that’s becoming familiar too fast, a trip to these natural wonders—or enigmas—will prove that some things are just beyond our grasp, and will prove to be refreshing. So if you’re a seasoned traveler who thinks you’ve seen them all, think again as you look at this list of the strangest places in the world.