The Hall for Cornwall is the principal arts venue for the county — a mid-sized theatre and concert hall that hosts everything from touring West End musicals to stand-up comedy, opera, ballet, and classical music concerts. For a city of Truro's size, it punches well above its weight in terms of programming.
It was completely refurbished and expanded in 2021 and is now a genuinely good venue with a comfortable interior and decent sight lines. Worth checking the programme before you visit — if something good is on, it is a legitimate reason to stay an extra night in Truro.