We still don't know what some of the ruins around the world were made for
この文章が以下のように翻訳されています。
いくつかの世界遺跡はなんのために作られたのか未だに分かっていない ー We still don't know what some of the ruins around the world were made for
いくつかの世界遺跡は ー some of the ruins around the world / many of the ruins around the world
なんのために ー for
作られたのか ー were made / were built
未だに ー still / even now / yet
分かっていない ー (we) don’t know
参考になれば嬉しいです。