cco ▁di ▁Con eg li ano ▁e ▁Val dob bi ad ene ▁was ▁ins cribed ▁as ▁a ▁UN ES CO ▁World ▁Heritage ▁Site . ▁ ▁Indust ry ▁Con eg li ano ▁is ▁noted ▁for ▁its ▁wine , ▁chief ly ▁the ▁dry ▁white ▁Pro se cco ▁( made ▁from ▁the ▁g lera ▁gra pe ) ▁which ▁comes ▁in ▁three ▁vari eties : ▁tran qu illo ▁( st ill ), ▁fri zz ante ▁( sl ight ly ▁spark ling ) ▁and ▁sp um ante ▁( spark ling ). ▁It ▁is ▁also ▁home ▁to ▁Italy ' s ▁oldest ▁and ▁most ▁pr estig ious ▁wine ▁school ▁called ▁Sc uola ▁En olog ica . ▁ ▁It ▁is ▁also ▁home ▁to ▁the ▁Ist ituto ▁S periment ale ▁per ▁la ▁Vit icol t ura ▁where ▁several ▁Italian ▁gra pe ▁vari eties ▁have ▁been ▁b red , ▁including ▁Al bar ossa , ▁V ega ▁and ▁Valent ino ▁n ero . ▁Additionally , ▁vit icult ural ists ▁at ▁the ▁inst itute ▁have ▁helped ▁save ▁many ▁native ▁Italian ▁gra pe ▁vari eties ▁from ▁ext inction , ▁such ▁as ▁the ▁Val pol ic ella ▁gra pe ▁Big ol ona . ▁ ▁There ▁is ▁also ▁a ▁great ▁industrial ▁tradition , ▁especially ▁special ized ▁in ▁home ▁app li ances . ▁ ▁Col li ▁di ▁Con eg li ano ▁DO C ▁ ▁The ▁hills ▁around ▁Con eg li ano ▁are ▁home ▁to ▁the ▁Den omin azione ▁di ▁orig ine ▁cont roll ata ▁e ▁garant ita ▁( DO CG ) ▁zone ▁of ▁Col li ▁di ▁Con eg li