Final answer:
The Basilica of Constantine, also known as the Basilica Nova, was built in Rome, Italy during the late Roman Empire period. Its architect is unknown, but it is a significant historical and architectural landmark.
Step-by-step explanation:
The subject of this question is History. The question pertains to the Basilica of Constantine and asks about various aspects of the structure, including the architect, construction period, location, and historical period.
The Basilica of Constantine, also known as the Basilica Nova, was built in Rome, Italy during the late Roman Empire period, specifically between 312-315 CE. Its architect is unknown, but the basilica is a significant historical and architectural landmark in Rome.