"建造物"は英語で "buildings"か "structures" と言います. "buildings"の方が一般的で," structures"のほうが専門的な語彙です.
この場合では:
ヨーロッパに行ったら日本にないような歴史的建造物を巡りたい。
If I go to Europe I want to see/visit the kind of historical buildings that are not in Japan.
If I go to Europe I want to see/visit the kind of historical buildings that we don't have in Japan.