Helena Historic District
... that the Helena Historic District required a major boundary adjustment when urban renewal in the 1970s destroyed over 60 historically significant buildings?
... that the <b id="mwAkE"><a href="./Helena_Historic_District_(Helena,_Montana)" id="mwAkI" rel="mw:WikiLink" title="Helena Historic District (Helena, Montana)">Helena Historic District</a></b> <i id="mwAkM">(Atlas building pictured)</i> required a major boundary adjustment when <a href="./Urban_renewal" id="mwAkQ" rel="mw:WikiLink" title="Urban renewal">urban renewal</a> in the 1970s destroyed over 60<span id="mwAkU" typeof="mw:Entity"> </span>historically significant buildings?