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Plaza Dorrego
This colonial square is the city's second oldest, after Plaza de Mayo. From Monday to Saturday you can pull up a plastic chair and watch some tango with a glass of something or browse the daily hippy craft market that skirts the square. On Sundays the antique stallholders take over for the Feria de Pedro San Telmo.
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Plaza San Martín
Designed by Carlos Thays, gorgeous Plaza San Martín is the center's loveliest green space. Previously home to a slave market, military fort and bullring, its benches now host homeless people and kissing couples. Below the park's bluff is the Monumento a los Caídos de Malvinas, a memorial to those who died in the Falklands. Across the road is the art-nouveau Palacio San Martín.
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Puente de la Mujer
Puerto Madero's signature monument is the stunning Puente de la Mujer (Bridge of Woman), which opened in 2001. Designed by acclaimed Spanish architect, Santiago Calatreva, it's intended to represent a couple dancing the tango.
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Reserva Ecológica Costanera Sur
A pretty tree-lined promenade east of Puerto Madero, the Costanera Sur skirts the city's largest open space, the Reserva Ecológica Costanera Sur. There's excellent bird-watching, a beautiful marble fountain created in 1903 by Tucumán artist Lola Mora, and colorful makeshift barbecue carts that sell delicious steak sandwiches.






