Virtual tours of four famous buildings can make all the difference. This article, recently published in the online magazine luxurydefined by Christie’s International Real Estate, shows you how, with a simple click you’ll be transported to buildings in the deserts of Arizona by Frank Lloyd Wright, to the famous Opera House at the Sydney waterfront by Jim Utzon, to Casa Battló by Antonio Gaudi along Barcelona’s historic streets or to the Museu Casa Estudio Diego Rivera y Frida Kahlo in San Angel by architect Juan O’Gorman — often with exclusive behind-the-scenes access that few are lucky enough to be granted. Here’s where to begin your online adventure.