Looking down along the Pont au Change you can see two of the stone abutments which rest in the River Seine and allow the bridge to connect to the Ile de la Cite. Daily updates at www.eutouring.com/images_pont_au_change.html
This is one of four detailed stone abutments which support the Viaduc d'Austerlitz to pass over the River Seine in Paris. You may be interested in more; www.eutouring.com/images_viaduc_d_austerlitz.html