Lascaux

You're probably not a spelunker. Goodness knows I'm not. Even the anthropologists on my friends list don't have the right specialties to see the paintings at Lascaux in person. Considering the delicate condition of the paintings (which is deteriorating in new ways recently, perhaps due to global warming), it's a good thing the caves are closed now to everybody but researchers doing specific, relevant projects. But sometimes I wish I'd gone, back when the caves were still open to tourists.

Fortunately, the consolation prize doesn't require a hard hat.

Thanks to anghara for the link.