When Kul Pradeep Singh told the property dealer he didn't want to cut down any trees to build his house, the dealer thought he was nuts. Singh took it as a challenge and decided to build the house in Udaipur, India by himself. After a year, Singh and an architect constructed a two-storied tree house on a mango tree, furnished with a kitchen, bathroom, dining hall, and two bedrooms for his wife and son. Not a single branch nor tree was cut. And his neighborsor rather other family membersare singing birds and small animals! "To co-exist with other living beings is an absolute pleasure, and we love their company, says Singh. The mango tree has since grown to a height of forty feet.