A near-perfect square of about 1.5km a side, drawn by King Mangrai in 1296 and still defined by its moat and the broken brick wall behind it. Inside is a low-rise grid of working monasteries, guesthouses, massage shops, coffee bars and 7-Elevens, with roughly thirty temples in an area you can cross on foot in twenty minutes. It is simultaneously the most touristed part of Chiang Mai and a real neighbourhood — monks sweep courtyards at seven, schoolkids cycle down Ratchadamnoen at four, and the guy selling grilled sausage at the north gate has been there since before anyone was posting about it.
Who it's for: First-time visitors, full stop — the temples, the museums, the two gates that anchor the city's evenings and the best-value beds in Chiang Mai are all inside the moat. Walkers, because everything is genuinely within fifteen minutes on foot. Anyone who wants a base with no car and no scooter. Temple people, obviously. Solo travellers, who'll find the north-gate bar strip does the introductions for them.