Many destinations promise visitors the chance to "step back into history." A Celebrity Xpeditions to the Galapagos Islands perhaps best exemplifies that promise, as we take you to a destination that helped to shape one of the world's leading scientific doctrines. The are known as the inspiration for Charles Darwin's theory of evolution, this cluster of islands is so isolated that many of its creatures cannot be found anywhere else on earth. From the giant tortoises that bear the Galapagos name, to the marine iguanas and "Darwin" finches, the Galapagos islands afford visitors the chance to observe a living laboratory of adaptation. Celebrity Cruises provide guests with this rare, up-close experience with the smallest possible environmental impact to these precious shores.