In the Vinony graph
Vinony's link graph records 5 inbound references to Place Royale, and connects out to geographic coordinate system, International Standard Book Number and Reims.
The entry is geolocated on the map in landmark.
It is catalogued under topics including Building and structure articles needing translation from French Wikipedia, Buildings and structures in Reims and Monuments historiques of Marne (department).
Vinony links it to 4 Wikipedia language editions.