ever deeper, retreating behind ever more layers of private facilities, they might pause to think how empty those echoing chambers will feel. Most popular on the Guardian Today in pictures After advising tourists against travel to the cities of Jammu and Srinagar for nearly 20 years, the Foreign Office has lifted its guidelines after a fall in violence. So, Dal Lake and part of the Valley of Kashmir, one of India's most beautiful regions, are once again open to visitors Some 'iceberg houses' add underground extension that triples the size of the property, including everything from ballrooms and swimming pool to bowling alleys and vintage-car garages. Illustration: Ben Hasler