Royal Armouries Museum

You come for Henry VIII's armour, but you'll remember the surprisingly decent coffee. This museum café sits in one of the UK's most impressive collections of weaponry and war history, but manages to serve food that doesn't feel like an afterthought. The space feels appropriately grand without being stuffy, and the menu covers all the café classics without trying to be clever about it. What sets it apart is the setting – you're literally surrounded by centuries of military history, making your lunch break feel like part of the experience rather than a pause from it. The riverside location means decent views too, assuming you can tear yourself away from wondering how anyone ever moved in medieval plate armour.