St Nicholas Market lives inside Bristol’s Exchange, a Georgian building from 1741 that is really an elaborate stage set. The grand facade suggests one stately structure, but behind it sat a coffeehouse, tavern, houses and an open courtyard, later glazed over for trading in all weathers. It is the last building of its kind in England, and the Rolling Stones once played here.

Today it’s a warren of tiny shops, a Glass Arcade of food stalls and a hall selling everything from crystals to chilli sauce. Outside stand four brass “nails”, where merchants settled up and possibly coined “paying on the nail”. The clock has two minute hands, because Bristol resisted London’s time until 1852.

VoiceMap’s self-guided audio tours use the market to show how a city built on trade did business, then lead you down the alley beside it to the Rummer, whose cellars once hid smuggled rum.