The individual journeys we make during our own time on Earth are relatively short when compared to the seemingly infinite path our species has been on over the millennia. Spread across the globe are outstanding monumental remains of various civilizations that attest to this. The perennial targets of past and present explorers, they emit a curious call to travellers from all over the world. Having withstood the ravages of time, they hint at the knowledge and skills of our ancestors, and serve as a powerful, mysterious, and thought-provoking testament to our collective human history. Representing some of the best examples of what we can produce, these special sites and ruins are gatekeepers of our legacy. Every time one of them disappears another link that connect us to the secrets of humanity’s past is broken. Although ancient, they seem to beckon with the promise of future adventure. … More Humanity’s Legacy