Palacio Cosmos, Residential tower in Mar del Plata, Argentina.

Palacio Cosmos is a 119-metre, 38-storey residential tower in Mar del Plata, designed by Juan Antonio Dompé and finished in December 1964. Its base holds two basement levels for machine rooms, a ground floor with street-facing shops and the tower entrance, and two mezzanine parking levels for residents. Above them rise 35 apartment floors with eight units each, all facing outward.

The tower was completed in 1964 by architect Juan Antonio Dompé and marked the turning point when the city shifted from a destination for the wealthy to a popular vacation spot. Its construction coincided with the period when Mar del Plata began attracting thousands of visitors and fundamentally changed its character.

The building represents the shift of the 1960s when vacation housing replaced private mansions in the city's center. This architectural change shows how Mar del Plata transformed from an exclusive destination to a place for middle-class families.

The tower rises from a base of two underground levels, a ground floor with street-facing shops, and two mezzanine parking levels for residents. Visitors reach the shops directly from the street; the 35 apartment floors above are private. The building stands in central Mar del Plata, at coordinates roughly -38.0088, -57.5378.

The tower was long known for its large advertising signs displaying logos of brands like Pepsi and Philips. Because of this advertising, locals referred to the building for years as Edificio Pepsi or Edificio Phillips.