You have just searched for "Mexico Crystal Cave of the Giants". Here are the results:
With all the natural wonders in the world, it’s an almost impossible task to narrow the wonders down to just seven. You’ve heard of the “official” seven wonders, but check out these; just seven more of the hundreds or thousands or millions you could choose from. You probably have heard of some of these, but hopefully a few will be new discoveries for you. We’d love to hear about your favorite natural wonder, so please leave your comments. Keep it natural.