Martin and Osa Johnson were celebrities in their day, but their vision of Africa was way out of touch with reality.

Eucalypts are now cosmopolitan, spread around the world through imperialism and globalization. Unfortunately, they're also highly flammable.

Walking as an art has a deep history. By guiding participants, or their own bodies, on walks, artists encourage us to see the extraordinary in the mundane.

How is it that in 2017 there are still Flat Earthers? Perhaps first we need to look back at the myth of Christopher Columbus.