People have been crawling around the cavernous mountains of Asia for centuries, but remarkably, the largest cave in the world remained hidden from discovery deep in the forests of Phong Nha Ke Bang National Park in Vietnam until
Masada is an ancient fortification in Southern Israel on the eastern edge of the Judaean Desert, overlooking the Dead Sea. The Siege of Masada by Roman Empire troops towards the end of the first Jewish–Roman War ended in the mass suicide of the 960 Jewish
Puerto Princesa Underground River is located about 30 miles km) north of Puerto Princesa, Palawan, Philippines. On Puerto Princesa Underground River was provisionally chosen as one of the the of Nature.