Moika River
...that the Moika River in St Petersburg was originally spanned by four bridges only: the Blue, the Green, the Yellow, and the Red?
...that the <b id="mwXA"><a class="mw-redirect" href="./Moika_River" id="mwXQ" rel="mw:WikiLink" title="Moika River">Moika River</a></b> in <a class="mw-redirect" href="./St_Petersburg" id="mwXg" rel="mw:WikiLink" title="St Petersburg">St Petersburg</a> was originally spanned by four <a href="./Bridge" id="mwXw" rel="mw:WikiLink" title="Bridge">bridges</a> only: the Blue, the Green, the Yellow, and the Red?