Image credit: cнαт-ɴoιr^^annette
Well, in theory. Nowadays you can still view the bridge in the park, but crossing the aging relic is prohibited in order to preserve it. What a shame.
The curvature of the bridge is designed to be one half of a perfect circle, so that when the waters are still and the light is right, it creates the illusion of a complete stone circle. From any direction, actually.
This means that, despite the crossing restrictions, you can still take perfect photos there, so the place is definitely worth a visit.