Walking five minutes from the Obelisk to the Teatro colon, the third largest theatre in the world, it is said that the sound effect is perfect to the point of no more. The theatre is a typical Renaissance behemoth. There are countless columns in the marble corridor, such as statues, with dazzling gold foil. Giant auditorium with golden walls and red velvet carpets under its feet. Outside 2500 auditoriums, it can accommodate 1000 standing audiences. The theatre was built in the most powerful era of Argentina. The building materials are basically imported. For example, the handrails, pillars and steps are made of marble from different parts of Italy. It would be hard to imagine Argentina being so brilliant if it hadn't been here. Ticket price is 250 ARS / person, with English explanation every hour, tour time is 1 hour, open time is 9:00-17:00.