3. Aldabra, Seychelles
Incredibly isolated and wonderfully untouched, it’s no surprise that David Attenborough described Aldabra as one of the wonders of the world. With no regular ship or air services, the intrepid traveller will need to organise their own transport to reach the remote paradise. Strong tides around the island and challenging terrain are worth braving for the vibrant sea life and chance to spot an endangered giant tortoise.
4. Derweze, Turkmenistan
Deep in the barren Karakum desert, you’ll find the otherworldly Door To Hell, a fiery natural gas crater that has been burning for more than forty years. The mesmerising sight is visible for miles, and is best visited at night when it juxtaposes stunningly against the dark sky.