These are the breathtaking pictures of the world's largest stone
forest - made up of hundreds of razor sharp vertical rocks. The
colossal 600km square landscape is a labyrinth of 300ft high
spiked towers, slot canyons and caves. But despite its harrowing
appearance and dangerous structure, the bizarre space is in fact
home to a whole host of animals. In a remote part of Madagascar
the spectacular structure is known as the Tsingy, which
translates as 'where one cannot walk'. It is formed by tropical
rain which eroded the limestone into razor sharp pinnacles. The
Tsingy, or stone forest as it is more commonly known, is the
largest of its kind in the world. But with it's narrow
passageways, knife-edged towers and remote location the stone
forest has remained largely unexplored. Intrepid explorer and
photographer Stephen Alvarez is just one of a handful of people
lucky enough to capture the natural phenomena on camera. The
47-year-old visited the Tsingy de Bemaraha national park, home
of the stone forest, with a