"Compared with many of its rivals, this Bangkok stalwart doesn’t have a location that’s wildly convenient: the postcard sights need a boat transfer, and most top tables are more than a 30-minute taxi ride away. But for me, and the legions of other loyal fans of this monochrome masterpiece by hotel guru Bill Bensley, that’s the point. Pitched up on a lush riverside plot in the hushed Dusit district, The Siam feels like a portal to a bygone Bangkok. Even though it opened a decade ago, it’s easy to imagine it as a plush playground for the city’s erstwhile big guns, the mid-century movers and shakers whose heirlooms—vintage Pan Am posters, tattered travel trunks and chipped ceramics—adorn the marble-floored hallways. I’d be hard-pressed to point friends to a lovelier lunch spot than the hotel’s Thai restaurant, set between the timeworn pillars of three ancient teakwood houses, where butlers in dressy black sarongs deliver the kind of classic Thai hospitality—lilting “sawadee ka” greetings and tables set with fresh orchids—that’s becoming harder to find. None of which is to say that the hotel is stuffy—there’s a tattoo parlor in the spa. An ongoing refurb is keeping suites and private-pooled villas looking fresh. And with the opening of a Jim Thompson homeware boutique in the wooden house the illustrious silk magnate helped procure for its former owners, things have come full circle. The Thai capital’s five-star hotel scene gets plusher every year, but this timeless beauty remains in a league of its own. From $618."