Dotted around the base of the Centrepoint tower in central London are a cluster of heavyset stone seats, with a hidden surprise - they spin.

The piece by American artist Jeff Koons — Balloon Venus Dolni Vestonice (Yellow), 2013–17 — is a nearly three-metre-tall polished stainless steel statue.

Haunted by mental illness, Chalepas transformed his pain into some of Greece’s most moving sculptures. Credit: LBM1948, Wikimedia Commons, CC BY-SA 4.0 Yannoulis Chalepas is Greece’s synonym for ...