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https://en.wikipedia.org/wiki/Temple_of_Castor_and_Pollux
https://www.ancient.eu/timeline/Roman_Architecture/
The temple of Castor and Pollux is and ancient temple in the Roman Forum Rome, central Italy. The building was constructed in Roman concrete and originally covered in slabs of tuff which were later removed. -
https://www.ancient.eu/timeline/Roman_Architecture/
They built strong walls around the seven hills. -
https://en.wikipedia.org/wiki/Appian_Way
The Via Appia is a very important Roman road. The road began as a levelled road upon which small stones and mortar were laid. Gravel was laid on top with tight fitting, interlocking the stones so a flat surface was made. -
https://en.wikipedia.org/wiki/Temple_of_Jupiter_Stator_(2nd_century_BC)
The temple of Jupiter Stator was a temple of ancient Rome, named after the god Jupiter. -
www.ancient.eu/aqueduct/
Roman aqueducts were made by clay or multiple lead pipes reinforced with stone blocks. -
https://en.wikipedia.org/wiki/Amphitheatre_of_Pompeii
The amphitheatre of Pompeii is the oldest surviving Roman amphitheatre. The current amphitheatre is the earliest roman amphitheatre known to have been built of stone, previously they had built it out of wood. -
https://en.wikipedia.org/wiki/Theatre_of_Pompey
The theatre of Pompey was the first permanent stone building to be made. Pompey used concrete and stone fountains allowed for a freestanding Roman theatre and amphitheatre. -
https://en.wikipedia.org/wiki/Forum_of_Caesar
Caesar decided to construct a forum bearing his name in the northeast section of the Forum Romanum, of which he purchased a very expensive, select amount of parcels of land in that area. -
https://en.wikipedia.org/wiki/Pantheon,_Rome
The pantheon, a former roman temple, now a church, was dedicated to Marcus Agrippa. -
https://en.wikipedia.org/wiki/Arch_of_Augustus,_Rome
The arch of Augustus was the triumphal arch of Augustus, located in the Roman Forum. -
https://en.wikipedia.org/wiki/Temple_of_Jupiter_(Roman_Heliopolis)
The temple of Jupiter was a colossal temple dedicated to the cult of Zeus, located in the Heliopolis of Roman Phoenicia. -
https://www.ancient.eu/timeline/Roman_Architecture/
The largest roman aqueduct is 49 m high, completed at Pont du Gard. -
https://www.ancient.eu/Circus_Maximus/
The Circus Maximus was a chariot racetrack in Rome first constructed in the 6th century BCE. The circus was used for other public events such as the the roman games and gladiator fights. -
https://en.wikipedia.org/wiki/Baths_of_Nero
Fee
The baths of Nero were a series of complex baths on the Campus Martius in ancient Rome built by Nero and rebuilt by Alexander Severus. The baths of Nero covered and area of about 190 by 120 meters. -
http://www.history.com/topics/ancient-history/colosseum
The Colosseum is a massive stone amphitheatre given by Emperor Vespasian of the Flavian dynasty as a gift to the roman people.