Madrid’s Best Luxury Hotels Were Once Actual Palaces

"Set in an 1852 palace-house in the Barrio de las Letras, this One MICHELIN Key hideaway has 34 rooms (some over 100 square meters), ornate moldings on walls and ceilings, bright suites with private terraces, and a grand seven-meter-high entrance watched over by Hermes where it’s easy to imagine noble carriages arriving; out back, a hidden garden reveals a charming plunge pool, and the urban-oasis vibe extends to curated experiences like The Art of Landscapes three-hour parks-and-gardens tour, in-room private massages, a Bubble Brunch paired with Abelé 1757 Brut Champagne, and lively pool-garden parties." - The MICHELIN Guide