This colonaded square with palms is a popular meeting place. It's packed with both locals and tourists during the day and at night - there are many cafés, restaurants, and popular nightclubs around. Open-air concerts or New Year's celebrations also take place here.
The square attracts tourists also because of the Fountain of the Three Graces and the two lampposts designed by Gaudí. The fountain is situated in the centre of the square and depicts three women - Euphrosyne, Aglaea, and Thalia. They are the daughters of Zeus, goddesses of charm, beauty, and fertility. The lamp posts are right next to the fountain.
The nearest metro station is Liceu, line L3.
Wikipedia https://en.wikipedia.org/wiki/Royal_Square_(Barcelona)
Address Plaça Reial, 08002 Barcelona, Spain
Coordinates 41°22'48.324" N 2°10'30.971" E