Bairro Alto, formed towards the end of 15th century is a central district of Lisbon. If you want to enjoy nightlife in the heart of the city, visit some of the bars in this quarter! During the day, this popular bar-hopping area changes into a nice and peaceful place for a walk.
Wikipedia https://en.wikipedia.org/wiki/Bairro_Alto
Coordinates 38°42'47.12" N -9°8'44.34" E