It might sound a bit, well, cave-man, to stay in a cave, but these natural underground spaces transport you back to a simpler time without advanced technology. Beds, tables and lanterns are added to create a cozy and comfortable stay. Some have electricity while others may be as primitive as they get, so if you’re scared of the dark, these accommodations might be a good one to overcome that fear. Some of these sites have historic importance such as the Granada caves which farmers, moors, miners, and humble peasants alike used to use as refuge. But as history advances, glamour has combined with ancient times and created a truly unique experience and accommodation.