Craters of the Moon

Parts of  Idaho reminded me of central Illinois -- if the potato fields were soybeans (which I thought they were at first) and there weren't mountains in the background.  But Craters of the Moon was unlike anything I had seen before.  I don't know how to describe it -- it's not really beautiful, just very strange.  Volcanoes erupted years ago, and the hardened lava is what's left.

There are also hills covered in cinders to hike up. . . 

And caves to explore (nature's Pantheon).