Photographer David Clifford has captured the world's most dogged runners doing what they love in the most remote and unforgiving environments.
1) Mold cape
To look at this extraordinary gold cape - by far the oldest treasure in our list - it's hard to comprehend that it's 3,600-3,900 years old. That is, almost as old as Stonehenge. Beaten from a solid sheet of gold, and embossed with intricate bead-like designs, it is thought to have formed part of a ceremonial outfit.
The cape was unearthed in 1840 by men quarrying for stone in a field known as Fairies Hill, in north Wales. But it took many years for experts to even identify it as a cape, let alone reconstruct it. The cape is now one of the British Museum's star attractions.