Travelers jump at any chance to explore nature, whether it's a sweaty hike through the Amazon, or maybe an afternoon spent flower-gazing on a mountain in South Africa. This is what travel is all about: seeing all the beauty the world has to offer. But what about sites that weren't created by nature? Sometimes, they can be just as impressive. Check out the eight man-made attractions around the world that you can visit for free.

Travelers jump at any chance to explore nature, whether it's a sweaty hike through the Amazon, or maybe an afternoon spent flower-gazing on a mountain in South Africa. This is what travel is all about: seeing all the beauty the world has to offer. But what about sites that weren't created by nature? Sometimes, they can be just as impressive. Check out the eight man-made attractions around the world that you can visit for free.