Whirpools are scary (unless you’re the main character in a fantasy book). But how about making one of your own? That’s what Anish Kapoor, a London-based Indian artist, did with Descension. He created an active black whirpool set in the floor of the Kochi-Muziris Biennale, leading to a seemingly endless pit. Furious water swirls around with the calm blue Arabian Sea just outside, serving as a stark contrast.