The term windmill derives from their use to mill grain. The first windmills appeared in Europe during the 12th century in northwestern France and southern England. At their peak of popularity some windmills were able to produce more than 1.5 megawatts of power, a level not reached again until 1988.
This bird house is modeled after a wren’s ideal home. Wrens aren't picky about their homes and will nest in small, plain houses. Just make sure the entry holes measure about 1 inch in diameter to let the wrens in and keep predators out.
A tower designed to emit light for marking dangerous coastlines, hazardous shoals, hidden reefs and also to help guide ships into safe harbors. Often these towers are cylindrical in order to avoid damage from strong winds.
The first modern Ferris Wheel was designed and constructed by George Washington Ferris as a landmark for the 1893 Worlds Columbian Exposition in Chicago. The term Ferris wheel later came to be used generically for all such structures. As of 2012, the Singapore Flyer at 541 feet high is the world’s tallest wheel.