Caleido is a 173-metre-tall (568 ft), 36-story skyscraper in Madrid.

[2] It is popularly known as Quinta Torre (Fifth Tower) as it stands close to the other four skyscrapers of the Cuatro Torres Business Area (CTBA) complex along the Paseo de la Castellana.

[3] Its construction started in April 2017[4] and the tower was formally completed on 19 October 2021, after the completion had been delayed from its initial date of September 2020 because of the effects of the COVID-19 pandemic.

The building was designed by architecture firms Fenwick Iribarren and Serrano-Suñer Arquitectura.

This article about a Spanish building or structure is a stub.