a pedestrian tunnel
... that, in 1993, one of the first rave parties in Croatia was held in a pedestrian tunnel underneath the historic core of Zagreb?
... that, in 1993, one of the first <a href="./Rave" id="mwBPM" rel="mw:WikiLink" title="Rave">rave</a> parties in Croatia was held in <b id="mwBPQ"><a href="./Grič_Tunnel_(Zagreb)" id="mwBPU" rel="mw:WikiLink" title="Grič Tunnel (Zagreb)">a pedestrian tunnel</a></b> underneath the <a href="./Gradec,_Zagreb" id="mwBPY" rel="mw:WikiLink" title="Gradec, Zagreb">historic core</a> of <a href="./Zagreb" id="mwBPc" rel="mw:WikiLink" title="Zagreb">Zagreb</a>?