(copied from Wikipedia) The Colosseum, or the Coliseum, originally the Flavian Amphitheatre (Latin: Amphitheatrum Flavium, Italian Anfiteatro Flavio or Colosseo), is an elliptical amphitheatre in the centre of the city of Rome, Italy, the largest ever built in the Roman Empire, built of concrete and stone. It is considered one of the greatest works of Roman architecture and Roman engineering.
Rome, Italy The Colosseum or Coliseum, also known as the Flavian Amphitheatre is an elliptical amphitheatre in the centre of the city of Rome, Italy. Wikipedia Rome, Italy Construction started: 70 AD Area: 6 acres (2 ha) Function: Amphitheater Architectural style: Ancient Roman architecture Architects: Vespasian, Titus
Mccaig's Tower, Oban - built 1897-1900 by local banker John Stuart McCaig who's aim was to provide work for local stonemasons - circular (not oval) copy of the Colosseum in Rome (featuring Gostic instead of Roman arches) - overlooks the town of Oban - was intended to have a museum and art gallery within the structure.
Ostia Antica (Italy). 'Not many people make it out to Ostia Antica, Rome’s version of Pompeii. But make the effort and you’ll find that its wonderfully preserved ruins are easily on a par with the more famous sites in the city centre.' http://www.lonelyplanet.com/italy/lazio/ostia-antica