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If you’re on the hunt for a swanky urbane vacation at once-a-decade prices, halt the search: In honor of its 10th anniversary, the Peninsula Chicago is slicing room rates to a lowly $10 for the second night’s stay through December 31. This reduces the cost of rooms by almost 50 percent – a virtually unheard of move at the swishy Magnificent Mile property. The birthday bash continues hotel-wide with select spa treatments for $110 and a 10th Anniversary Royal Tea; the $110 menu buys caviar, lobster soufflé, a glass of Cuvée Grand Siècle Brut Champagne, and 10 truffles to take home.

THE VALUE: Room rates start at a jaw-dropping $750, but your second night will ring up at just $10; without taxes, rooms cost $380 per night, an almost 50 percent savings.

THE CATCH: Weekend availability is limited; we found the most rooms open mid-week.

THE DETAILS: Visit www.peninsula.com/chicago or call 866-288-8889 to book.

WE'VE GOT MORE: See our Chicago Travel Guide for more trip-planning information, then use our Travel Search price comparison tool to find the lowest rates on flights, packages, and more travel deals.