1  Amphitheatre (Arles, France)

2  Shops (Trajan's Market, Rome)

3  Gateway (Patara, Turkey)

4  Basilica (Trier, Germany)

5  Theatre (Jordan)

6  Temple (of Bacchus, Baalbek, Lebanon)

7  Villa (Pompeii, Italy)

8  Baths (Herculaneum, Italy)

9  Forum (Pompeii, Italy)

10  House (Pompeii, Italy)

11  Tower (inside it - in York)

12  Temple (of Diana, Merida, Spain)

13  Shops (Herculaneum)

14  Amphitheatre (Verona, Italy)

15  Theatre (Orange, France)

16  Temple (Vic, Spain)

17  Basilica (Volubilis, Morocco)

18   Bath (in a villa, Pompeii)

19  Villa (Ephesus, Turkey)

20  Baths (Beirut, Lebanon - this is the space under the floor which was heated)