The 'Abode of Silence', or the Empty Quarter, covers almost 655,000 sq km and evokes all that was romantic and forbidden for European adventurers, such as British explorer Wilfred Thesiger who famously crossed it. The Bedouin simply call it 'the sands', and its dunes, which can reach up to 300m high, form long chains of sculpted ridges that always look as if they're missing the silhouette of a camel caravan.
