Cars appeared on the Zhivopisny (Picturesque) Bridge over the Moscow river in 2007, but the dome hanging under the arch has not been used. They wanted to use it as an observation deck first, then - as a restaurant, finally it was decided to make a registry office there. Now it's gonna be a cool place to get married.
This "egg" will be used as a registry office.
However the main building of the registry office is on the ground, the main ceremony will be held here.