Elsewhere in the Middle East, Nader Shah is considered something of a historical tyrant. But here he’s a local hero for briefly returning Khorasan to the centre of a vast Central Asian empire. Nader’s horseback statue crowns his otherwise rather dour 1950s grey-granite mausoleum, which was designed to emulate the lines of a tent (reputedly Nader was born and died under canvas). A small museum displays guns, a rhino-hide shield and four-pointed hats that must have made Afshar-dynasty courtiers look like jesters.