Alcalá 20 nightclub fire
40°25′05″N 3°41′56″E / 40.417959°N 3.699026°E
Alcalá 20 is the address (number 20 of Alcalá street) and the name of a former nightclub in the centre of Madrid.
On 17 December 1983 at 4:45 a.m., a fire broke out in the club as around 600 people were enjoying a Saturday night out. 82 people died and 27 were injured.
The charred remains of the labyrinthine four-story subterranean club remained intact and closed down until 2003, when a major refurbishment was started. The remodelled two-story club, renamed "Adraba", reopened in 2005 with improved fire safety, but it was closed down by the city authorities after only three hours. In November 2007 the club was again reopened and closed down once again by the authorities within a few hours. The club finally reopened under a new name in February 2010, after installing state-of-the-art fire safety devices.