Ice cave in the Skaftafell National Park in Iceland. Ice caves collapse and new ones form as each glacier grinds slowly towards the sea. Local guides can help you (without dying) find one. (Visit Skaftafell National Park in Iceland.
The Peacock Room – Castello di Sammezzano in Reggello, Tuscany, Italy. Within an abandoned castle in Tuscany, you can find the Peacock Room, a hidden jewel which features intricate Moorish designs and a breathtaking assortment of patterns and colors.