Avenida Leandro N. Alem

An English Argentine investor, Edward Taylor, opened a pier along the promenade in 1855, and the flood-control walls were extended northwards to Recoleta, and south to San Telmo, in subsequent works completed in 1865.

[2] Immigration in Argentina afterwards made the Paseo a veritable bazaar, in which Italian trattorias, French bistrots, German beer halls, and Greek restaurants operated alongside brothels and seedy bars.

Among the most notable were the head offices of the Nicolás Mihanovich Shipping Company and Bunge y Born (then Argentina's leading grain exporter) and the Buenos Aires Stock Exchange's new headquarters (1916).

Changes in national politics did not rename or adversely impact the avenue, which was further widened and improved by Mayor José Guerrico in 1931, adding new medians to delimit bus and taxi lanes, and giving the boulevard its approximate current layout.

Leandro Alem remains one of the city's most valuable commercial real estate addresses, and its last undeveloped lots, municipal property totaling no more than 15,000 m2 (160,000 ft²) and estimated to be worth around US$80 million, were publicly proposed for sale in 2009.