20 of the World's Most Beautiful Heritage Sites - #4

4. Galapagos Islands, Ecuador

Among the first sites to be listed by UNESCO in the 1970s, this otherworldly archipelago located in the far reaches of the Pacific Ocean was described by British naturalist Charles Darwin as "a little world within itself." On top of its bevy of endemic species that have remained unchanged for centuries, the island groups' location at the confluence of three ocean currents also attracts a diverse array of marine life.