Sofitel Hotel,Buenos Aires,Argentina, Image Gallery.Mianovich tower, nowadays Sofitel Hotel, 841/849 Arroyo St . This luxurious five star hotel is a carefully restored landmark building dated form 1929 that resembles a lighthouse casting light over the city. The neoclassic splendor of its outside is perfectly blend with a contemporary design and Art Déco interior. The Mianovich Tower, originally was a immigrant gathering point when they first arrived to the city of tango. No other place is as perfect as the Sofitel to stay at the beginning of our incredible journey. Email: Bob Frassinetti. Art Dealer & Journalist.