7 another wonders thing... what izzit?
1). Sailing Stone... (sliding rocks, moving rocks) are a geological phenomenon where rocks move in long tracks along a smooth valley floor without human or animal intervention. They have been recorded and studied in a number of playas around Racetrack Playa, Death Valley, where the number and length of travel grooves are notable. The force behind their movement is not understood and is subject to research. 
2). Mammatus Clouds... (bumpy clouds).. The name "mammatus" is derived from the Latin mamma (udder), due to the resemblance between the shape of these clouds and the breast of the woman.
3). Red Tides... also known as algal bloom....
4). Ice Circle... An ice circle is a rare phenomenon that occurs in slow moving water in cold climates. It consists of large discs of ice that rotate slowly in the water.
5). Fire Rainbow... A circumhorizontal arc (also popularly called fire rainbow) is a rare optical phenomenon. In order to be observed, the sun must be very high in the sky, at an elevation of 57.8° (90 -32.2°) or more, and can only occur in the presence of cirrus clouds. As a result it cannot be observed at locations north of 55°N or south of 55°S, although occasionally at higher latitudes from mountains.[1] In areas of Northern Europe it can only be observed around the time of the Summer solstice.[2] If cloud conditions are right it is seen along the horizon on the same side of the sky as the sun. It reaches its maximum intensity at a sun elevation of 67.9° .
6). Columnar Bassalt.... Amazing huh?.... During the cooling of a thick lava flow, contractional joints or fractures form. If a flow cools relatively rapidly, significant contraction forces build up. While a flow can shrink in the vertical dimension without fracturing, it cannot easily accommodate shrinking in the horizontal direction unless cracks form; the extensive fracture network that develops results in the formation of columns.
7). Blue Holes... 
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