Unusual Volcanic Craters

Diamond Head is a volcanic tuff cone on the Hawaiian island of Oʻahu.

Eric Tessmer [CC BY 3.0], via Wikimedia Commons

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Dead Vlei – Namibia’s graveyard of tree skeletons

By IkiwanerOwn work, GFDL 1.2, Link

Dead vlei is a white clay pan located near the more famous salt pan of Sossusvlei, inside the Namib-Naukluft Park in Namibia. Dead Vlei has been claimed to be surrounded by the highest sand dunes in the world, the highest reaching 300–400 meters which rest on a sandstone terrace.
The clay pan was formed after rainfall, when the Tsauchab river flooded, creating temporary shallow pools where the abundance of water allowed camel thorn trees to grow. When the climate changed, drought hit the area, and sand dunes encroached on the pan, which blocked the river from the area.

The trees died, as there no longer was enough water to survive. The remaining skeletons of the trees, which are believed to have died 600–700 years ago, are now black because the intense sun has scorched them. Though not petrified, the wood does not decompose because it is so dry.
info: wikipedia
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The Sunken Forest of Kaindy Lake in Kazakhstan

By Jonas SatkauskasOwn workhttp://www.satkauskas.blogspot.com, Attribution, Link

Lake Kaindy is located in the south of Kazakhstan, within Kolsai Lakes National Park. The lake is about 400 meters long, reaching depths of nearly 30 meters at its deepest point. Altered by limestone deposits, the water maintains a bluish-green color.
The lake is well known for its scenery, particularly its trunks of submerged Picea schrenkiana trees that rise above the surface of the lake. The area is often referred to as a “sunken forest”. The cold water helps preserve the tree trunks, which are overgrown with algae and various other water plants. In recent years, Lake Kaindy has become a popular international tourist destination. It is considered a natural landmark of Kazakhstan. The lake is also known for ice diving and trout fishing in the winter season.
info: wikimedia
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Mesmerizing Rainbow Art Installations

Gabriel Dawe

Dawe’s Plexus series are large-scale networks of sewing thread that are investigations of the visible spectrum of light. They are often site-specific, temporary commissions that the artist transforms into compacted displays of thread he calls relics when the exhibitions are over.

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Porto Flavia – A port suspended half way up a rock face

By noname – http://wikimapia.org/2056393/it/Porto-Flavia#/photo/716205, CC BY 3.0, Link

Porto Flavia is a sea harbor located near Nebida in the Iglesias comune of Italy. Built in 1923–24, it served as the mineral production hub of Masua in the west coast of the Sardinian Iglesiente area. It is named after Flavia Vecelli, the daughter of Cesare Vecelli, who engineered and designed the harbor. The harbor’s characteristics make it unique in the world, and at the time of its construction it was an outstanding engineering feat.
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The Hitachi Tree – A monkeypod tree with a giant umbrella shaped green canopy

By Myaataro – Photo by Myaataro, Public Domain, Link

The Hitachi tree, a large monkeypod tree with a distinctive umbrella-shaped canopy, grows in the middle of a grassy area in the middle of Moanalua Gardens in Honolulu, Hawai. The tree is estimated to be around 130 years old and its canopy provides shade over an area 40 meters in diameter. The tree  is registered as an exceptional tree by the City and County of Honolulu and cannot be removed or destroyed without city council approval.
Japanese electronics manufacturer Hitachi, Ltd. has used the tree as a corporate symbol since 1973. An agreement between the Damon Estate and Hitachi gave Hitachi exclusive worldwide rights to use the tree’s image for promotional purposes in exchange for annual payments .
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