Of course, there are no detailed similarity between the station and the palace. But the atmosphere, created by the shining colonnade and the specific magic light, makes these two totally different places look alike.
It has been long since my trip to Paris and the palace of justice Conciergerie is becoming more and more faint in my memory in contrast to Kropotkinskaya station. And every time I come to the station, I remember the island in the center of Paris and think: "May be, it's really a portal?". There is an air of mystery about the station.
I offer you some photos of the Conciergerie and the metro station so that you could compare them with each other.
1. The station:The source of the first photo: http://bio.fsu.edu. The source of the second photo: http://blog.travelpod.com/members/killerjones