Urticaria is also known as 'nettlerash' or 'hives'. It consists of wheals-spots or patches of raised red or white skin-each of which usually clears away in a few hours, to be replaced by other fresh wheals. The wheals are usually itchy, painful or cause a burning sensation.
1 1893: the original Ferris Wheel was 80.4 metres (264 ft) tall. 2  Built for the World's Columbian Exposition in Chicago, Illinois, it was moved to St. Louis, Missouri, in 1904 for the Louisiana Purchase Exposition, and demolished there in 1906.
The largest Catherine wheel measured 32.044 m (105 ft 1.56 in) in diameter and was built by Lily Fireworks Factory, in Mqabba, Malta, on 18 June 2011. The structure was free-standing and the Catherine wheel completed 4 revolutions under its own propulsion.