This ring is huge (3.320m = 10.895ft.) in diameter but not very well kept and partly being taken over by the sprawling mega-city.
It once was probably in the countryside as the area east of it, but the city is approaching
Grey Wethers consists of a pair of prehistoric stone circles, situated on grassy plateau to the north of Postbridge, Dartmoor, in the United Kingdom.
The circles are each approximately 33m (108 feet) in diameter, and less than five metres apart. Their centre points are aligned almost exactly north to south. The northern circle has 20 stones remaining, while the southern has 29 - ...
The Popocatepetl and IztaccÝhuatl Volcanos near Mexico City, Mexico. The name Popocatepetl, meaning "Smoking Mountain", was given to the volcano by the Aztecs, and suggests that the volcano has long been active. It is built on an older volcano which adds 12,464 ft (3800 m) to Popocatepetl's elevation.
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