Keep in mind, that some of them aren't necessarily for Roman/Eqyptian/Neanderthal/Medieval time periods, but they match much better than base game objects.
Egyptian Temple Set
http://modthesims.info/download.php?t=241685
Outdoor decorative set
http://modthesims.info/download.php?t=295088
Virgin Mary Statue
http://modthesims.info/download.php?t=237603
Medieval Door/Window
http://modthesims.info/download.php?t=249345
Antique Cooking Fireplace
http://modthesims.info/download.php?t=234925
Peasant Bedding & Bathtub
http://modthesims.info/download.php?t=146250
"Sunny Paradise" Living Room Set http://modthesims.info/download.php?t=231489
Wooden "Adobe" Beam Posts/Columunms http://modthesims.info/download.php?t=220212
Lyre Arm Settee
http://modthesims.info/download.php?t=291911
Roman Bed with Cushions
http://modthesims.info/download.php?t=249188
Also, here are some different bedding recolors that can fit into older time periods:http://modthesims.info/download.php?t=214346
http://modthesims.info/download.php?t=325097http://modthesims.info/download.php?t=273849http://modthesims.info/download.php?t=317743
http://modthesims.info/download.php?t=291425http://modthesims.info/download.php?t=291799
http://modthesims.info/download.php?t=231238http://modthesims.info/download.php?t=203296
http://modthesims.info/download.php?t=94321
http://modthesims.info/download.php?t=78840http://modthesims.info/download.php?t=63446&c=1
http://modthesims.info/download.php?t=147449
Enjoy! Let me know if you're looking for something specific.