They have been named by archaeologists after their principal mosaics ( or other finds ) :
The city 's considerable wealth is attested by the elaborate design of the houses of the wealthy , some of which have large mosaics still in situ .
some have been named by archaeologists after their principal mosaics ( or other finds ) :
The city 's considerable wealth is attested by the elaborate design of the houses of the wealthy , some of which have large mosaics still in situ .