Emerald City
Royal Palace of Oz
The Wizard learns of the dead of the Witch of the East in episode 1x01 “The Beast Forever”. The Wizard discusses the arrival of Glinda with his servant Isabel in episode 1x02 “Prison of the Abject”.
Source: IMDb
Part of Park Güell
The large terrace and colonnaded hall beneath it form the focal point of Parc Güell. They were both designed by Antoni Gaudí during the park's construction at the turn of the 20th century with the surrounding bench shaped like a sea serpent designed by Gaudí's collaborator Josep Maria Jujol.
The Wizard learns of the dead of the Witch of the East in episode 1x01 “The Beast Forever”. The Wizard discusses the arrival of Glinda with his servant Isabel in episode 1x02 “Prison of the Abject”.
Source: IMDb