Imagine being suspended hundreds of feet in the air above hard rock or raging waters; all that is keeping you suspended in the air is a wooden board, a taut rope and your balance. You prepare yourself for disaster: if the rope gives way or if your foot slips then death seems inevitable; but in […]

Vertiginous views are one thing, but combine such dizzying prospects with the sense that the planks on which you walk might give way at a moment’s notice, and even the bravest soul would be forgiven for allowing a little fear to creep in. The urge to inhabit high up places has been with us throughout […]