Protecting the Roman Empire's alpine frontier the Porta Nigra or black gate is in Trier now in this country
Since you have landed on this page then most probably you are looking for the Protecting the Roman Empire's alpine frontier the Porta Nigra or black gate is in Trier now in this country answer. This question was last seen on July 8 2022 Jeopardy TV Game Show.
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For more questions from this episode visit Jeopardy July 8 2022 Answers
