Since 1975, Nader Khalili has carried principles of Middle Eastern desert architecture to the forefront of the search for affordable, environmentally sensitive housing by molding earth into distinctive arches, vaults and domes.

In the 75 years since its foundation, the American University in Cairo has reinvented itself more than once to adjust to changing times, but it has steadily broadened its role as an invaluable cultural link between Egypt and the US.

Narrow streets, massive walls, courtyards, domes, wind towers and other traditional elements of architecture in the Middle East are based on sound scientific principles, and serve the cause of comfort in demanding climates.

From Notting Hill Gate to Mayfair, a host of London dealers and galleries comprise the world's top market for Islamic art. Each April and October, the best of that market appears on the auction block to cap off another season.

Rising on stilts above the Brunei River and surrounded by Brunei's modern capital, Kampong Ayer developed an architecture unique to its setting. Today, residents are proud of their successful blending of tradition and modernity.

Around 1200 BC, attackers known as the "Sea People" raided lands throughout the eastern Mediterranean. A geoarcheologist argues that the Sea People may have been a confederation, unacknowledged till now, whose capital was Troy.