Trajan's Markets Lot 61
Trajan's Markets are the equivilent of a huge shopping mall. Arranged around a semicircular street, this building had over 100 shops, offices and the like. Make sure that this is zoned as a commercial lot before installing. Comes unfurnished. Download from the E-Group only.

Temple of Claudius Lot 55
A huge temple built by the emperor Claudius. Has a maze of hedges around the temple, and is surrounded by a wall. Comes unfurnished. Make sure that this lot is a commercial lot before installing.

Theatre Lot 74
A theatre - sort of like an amphitheatre, but only half the shape, in a semicircle. Audiences would sit on the stairs whilst actors would perform at the bottom. Comes unfurnished. Make sure the lot is a commerical lot before installing.

Hydrofarm Lot 68
A small private health farm (bath house) in a lovely countryside setting, to get fit as well as clean. (I got the name hydrofarm from those Asterix comics ;-)) Comes mostly furnished, make sure it is a commercial lot before installing.