"At Cap-Egmont in Prince Edward Island, where he was a lighthouse-keeper, Edouard Arsenault started collecting bottles in 1979.…In the spring of 1980, at the age of 66, he began his construction, a mere hobby yet. As his six-gabled structure was taking form, visitors started coming in. Impressed by his work, they encouraged him to continue and to advertise it as a tourist attraction. And so, in 1981, the first Bottle House was open to the public. From 1980 to the spring of 1984, he cleverly cemented over 25,000 bottles of various shapes, sizes and colours, into three fantasy-like buildings."
More bottle houses: http://www.agilitynut.com/h/bh.html