36. Caves of Altamira, Spain

Like the Lascaux paintings in France, these charcoal paintings date back over 14,000 years. They’re a fantastic place for any history buff to visit. One of the caves even features a painting from over 35,000 years ago! Their preservation is nearly mind-boggling.

Unfortunately, it turns out that having tons of tourists panting excitedly around the ancient paintings was degrading the materials. They didn’t have modern, durable paints to use, after all. The caves were officially closed in 2002, although there is a replica nearby that interested tourists can still visit.