The Trulli houses of Alberobello in the Puglia region of Italy were built by settlers from limestone and not much else. An impressive dry stone building technique meant the houses could be collapsed simply by pulling out a keystone
BRIGHT-ON BEACH Glowing bioluminescent plankton in the tide line washes up onto a beach on Vaadhoo Island, Raa Atoll, Maldives, with stars above and a ship’s lights on the horizon. (Photo: Doug Perrine / Barcroft Media via The Telegraph)
Australia's Amazing Bioluminescent Lake (Also Bioluminescent Bay in Puerto Rico). An unusually high concentration of Noctiluca scintillans, a bioluminescent microorganism, turned the water a bright, glowing, ethereal blue.