Fourth Night Free in Buenos Aires at the Park Tower

It's time to tango. Park Tower, A Luxury Collection Hotel, is doling out a fourth night free to lucky guests who want to stay a little longer and soak up the urbane flair of this cosmopolitan city. Indulge in five-star facilities-- the Neptune Pool & Fitness Center with two swimming pools, tennis courts, sauna and steam baths-- and appreciate the hotel's talked-about service: 24-hour room service, butlers on each floor, and 24-hour concierge service, who can hook you up with coveted restaurant restaurants or arrange a visit to Tigre, an authentic Estancia.

The hotel's 181 spacious guest rooms have sparkling city views and Italian marble bathrooms with separate bath and shower. For the utmost in luxury, book a Terrace Suite, Senator's Suite, or Governor's Suite, to take in the spectacular views of the city and Rio de la Plata from a large terrace. Needless to say, the St. Regis Suite-- occupying the top floor of the hotel-- offers an unparalleled experience. Snag your fourth night free by booking the Taste of Luxury" package.