Luxury and design and history and glamour and Evita and where are my heart-eyed emoji?? It's not everyday you have the opportunity to tour the seat of a foreign government -- just plan accordingly; they only do public tours on the weekend, and there's only one English tour per weekend. The Banco Nacional is right across the street, Cafe Tortoni is on the other side of Plaza de Mayo, San Telmo is a few blocks away, and Puerto Madero is toward the water. Well, that to me sounds like an entire day in your itinerary...all within walking distance.