Walk down any street in London and pause for a moment. To your left and right is an array of doors in different styles. Craftsmen across the centuries have sought to impress you, the passer-by, with elegant designs. Owners have added a hand-painted flourish here, a Shakespeare knocker there.

Entranced, the photographer Cath Harries and house historian Melanie Backe-Hansen have uncovered 500 public and private doorways memorable for their hidden histories, grandeur or quirkiness.

Enjoy a magical mystery tour, discovering grand, stylish and unusual entrances.