 Later vestiges date from the Roman epoch and include a colonnaded road lined with shops . Of the large marble columns bordering the Roman street only fragments and bases remain . The Romans also built a monumental staircase adorned with mosaic patterns that leads to the top of the podium . To the right of the Roman road , near the entrance of the site stands a nymphaeum with niches where statues of the nymphs once stood . The floor of the nymphaeum is covered by a mosaic depicting the Maenads . Across the colonnaded road , facing the nymphaeum , are the ruins of a Roman villa ; only the villa 's courtyard has survived along with the remains of a mosaic depicting the four seasons . To the right of the processional Roman staircase stands a cubic altar , also of Roman construction . Other Roman period structures include two columns of a great portico leading to pools and other cultic installations . 
 Later vestiges date from the Roman epoch and include a colonnaded road lined with shops . Of the large marble columns bordering the Roman street only fragments and bases remain . The Romans also built a monumental staircase adorned with mosaic patterns <a href='null_relcl' title='1'><mark>that</mark></a><a href='uninflect' title='2'><mark>leads</mark></a> to the top of the podium . To the right of the Roman road , near the entrance of the site <a href='uninflect' title='3'><mark>stands</mark></a> a nymphaeum with niches where statues of the nymphs once stood . The floor of the nymphaeum is covered by a mosaic depicting the Maenads . Across the colonnaded road , facing the nymphaeum , are the ruins of a Roman villa ; only the villa <a href='null_genetive' title='4'><mark>'s</mark></a>courtyard <a href='been_done' title='5'><mark>has</mark></a> survived along with the remains of a mosaic depicting the four seasons . To the right of the processional Roman staircase <a href='uninflect' title='6'><mark>stands</mark></a> a cubic altar , also of Roman construction . Other Roman period structures include two columns of a great portico leading to pools and other cultic installations . 
Later vestiges date from da Roman epoch and include a colonnaded road lined with shops . Of the bigass marble columns bordering the Roman street only fragments and bases remain . The Romans also built a monumental staircase adorned wid mosaic patterns lead to tdatop of the podium . To thdayte of thedaman road , near the entrance of the site stand a nymphaeum with niches where statues of the daphs once stood . The fdar of the nydaaeum is covered by a mosaic depicting the Maenads . Across the colonnaded road , facing the nymdaeum , are the ruindaf a Roman villa ; only the villa  courtyard done survived along with the remaidaof a mosaic depicting the 4 seasons . To the right of the processional Roman staircase stand a cubic altar , also of Roman construction . Other Roman period structures include 2 columns of a great portico leading to pools and other cultic installations .