India, Sept. 16 -- What's common between the Tower of Wanaka in New Zealand and the Tower of Suurhusen in Germany? It's not that they are lopsided. It's not even about that being deliberately so. It's all related to the bragging-rights they claimed against a building that turned out tilted, and by mistake. We all know the story of the Leaning Tower of Pisa. Thanks to a miscalculation about a soft sub-soil, this building started leaning as soon as the construction began. From interruptions due to battles, to use of lead counterweights, to the design of upper floors, to the employment of cables, to the number of bells - a lot has been faced and tried - specially by engineers and designers - to correct the tilt and stop the tower from collap...