Papakōlea Beach (also known as Green Sand Beach or Mahana Beach) is a green sand beach located near South Point, in the Kaū district of the island of Hawaii. One of only two green sand beaches in the World, the other being in Galapagos Islands. It gets its distinctive coloring from the mineral olivine, found in the enclosing cinder co...
Phi Phi Islands, Thailand
The Phi Phi Islands are located in Thailand, between the large island of Phuket and the western Andaman Sea coast of the mainland. The islands are administratively part of Krabi province. Ko Phi Phi Don meaning "island" in the Thai language) is the largest island of the group, and is the only island with permanent inhabitants, although the beaches of the second largest island, Ko Phi Phi Lee (or "Ko Phi Phi Leh"), are visited by many people as well....
Cave of the Crystals, Mexico
Cave of the Crystals or Giant Crystal Cave (Spanish: Cueva de los Cristales) is a cave connected to the Naica Mine 300 metres (980 ft) below the surface in Naica, Chihuahua, Mexico. The main chamber contains giant selenite crystals (gypsum, CaSO4·2 H2O), some of the largest natural crystals ever found. The cave's largest crystal found to date is 12 m (39 ft) in length, 4 m (13 ft) in diameter and 55 tons in weight. The cave is extremely hot with air temperatures reaching up to 58 °C (136 °F) with 90 to 99 percent humidity. The cave is relatively...
Great Mosque of Djenne, Mali
The Great Mosque of Djenné is the largest mud brick or adobe building in the world and is considered by many architects to be the greatest achievement of the Sudano-Sahelian architectural style, with definite Islamic influences. The mosque is located in the city of Djenné, Mali, on the flood plain of the Bani River. The first mosque on the site was built around the 13th century, but the current structure dates from 1907. As well as being the centre of the community of Djenné, it is one of the most famous landmarks in Africa. Along with the "Old...