- en-academic.com dic.nsf/enwiki/986319It was inaugurated in 1778. Notable events related to Puerta de Alcalá. * In 1823, the Puerta de Alcalá was showered by a burst of cannon shrapnel.
- britannica.com place/Puerta-de-Alcala…de la Independencia and the Puerta de Alcalá (a gateway originally built in 1599 and rebuilt in 1778).
- barcelo.com guia-turismo/en/spain/madrid/things-…The history of the Puerta de Alcalá actually pre-dates its construction, as it was built on the site of an earlier, sixteenth-century gate.
- everipedia.org wiki/lang_en/Puerta_de_AlcaláThe Puerta de Alcalá ("Alcalá Gate", from the Arabic word القلعة al-qal'a, "citadel") is a Neo-classical monument in the Plaza de la Independencia in Madrid, Spain.
- tr.advisor.travel poi/Puerta-de-Alcala-24458Puerta de Alcalá (Türkçe: Alcala Geçiti) İspanya'nın başkenti Madrid'deki Plaza de la Independencia meydanında yer alan neoklasik üsluba sahip bir anıt.
- expedia.co.th en/Puerta-De-Alcala-Salamanca.…Today the Puerta de Alcalá stands at the near centre of Madrid, though it once marked the city’s eastern extremity and the road to Alcalá de Henares.
- hospes.com en/puerta-alcala/In the heart of Madrid, in the Salamanca neighbourhood, located in Puerta de Alcalá and in front of Retiro Park. Book on our official website.
- foursquare.com v/puerta-de-alcalá/…See 3136 photos and 139 tips from 19383 visitors to Puerta de Alcalá. "Great photo opportunity when cars are stopped by traffic lights".
- wiki2.org en/Puerta_de_AlcaláThe Puerta de Alcalá is a Neo-classical gate in the Plaza de la Independencia in Madrid, Spain. It was a gate of the former Walls of Philip IV.
- jbinnacle.com tag/puerta-de-alcala/Carlos III is also responsible for the design of the modern version of one of the former wall gates, called the gate to Alcalá, the nearby town, Puerta de Alcalá.