Africa's largest city with a population of nearly 18 million, Cairo is a chaotic mixture of sights, sounds and smells. It is heaving with life, volatile, polluted and boisterous, with an intensity that both exhausts and invigorates the visitor. It is also distinctive with its ancient monuments in juxtaposition to the modern and cosmopolitan. The congested streets of Islamic Cairo are full of donkey carts, traders and mosques, while camels weave their way haughtily between the crumbling pyramids on the outskirts.
The capital of South Africa's smallest province, Gauteng, Johannesburg is the economic powerhouse of Africa with its ever-growing suburban sprawl creeping outwards from the central city skyscrapers and ring-road motorways.