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Which historic sites in Trier are included in a UNESCO World Heritage designation?

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In 1986, several historic sites in Trier were collectively designated as a UNESCO World Heritage site. These include:

  • Roman monuments: The city is home to numerous well-preserved Roman structures, such as the 2nd-century Porta Nigra (a fortified town gate), the ruins of 4th-century Roman baths, 2nd-century bath substructures, the amphitheatre (c. 100 ce), and the 4th-century basilica that served as the throne room for Roman emperors.1
  • Religious sites: The cathedral (the nucleus of which dates to the 4th century) and the Church of Our Lady (built 1235–70) are also included in the designation.12