Marriott Plaza Hotel Buenos Aires is ideal for family travelers that put a premium on character and location. Built by German Architect Alfred Zucker in 1909, it's a Buenos Aires landmark. The hotel is located in the heart of the financial district and sits just opposite Plaza San Martin. The guestrooms are spacious. The service is excellent. The one drawback? It's looking tired of late. Family Travel Tips: Not all guestrooms have views. The Wi-Fi connection is intermittent. Cribs and rollaway beds are available upon request.