Lovely homage to Momir Korunović, a pre-WWII architect who speciaised in Serbian National style architecture in front of the former Sokol HQ. The pattern on the nearby pavements is also reminiscent of the neo-Byzantine patterns he used on his buildings.
The Easter eggs - First picture: king of my heart resembles the dancer from king of my heart which is her co-partner in the music video.
Second picture: lyrics from one of the upcoming songs.
Third picture: I got no idea so write down here in the comments what do you think it is ;). #lovermusicvideo#lover#taylorswift#eastereggs#kingofmyheart