Dubris

[4] What little remains of the western lighthouse is called the Bredenstone or the Devil's Drop of Mortar after the putative nearby lost village of Braddon, within Drop Redoubt on Dover Western Heights — it was covered in the 18th-century building works but then rediscovered in fresh works in the 1860s, and was the traditional site of the investiture of the Lord Warden of the Cinque Ports.

[3][5] At its peak, Dubris was a major trading centre, taking over from Rutupiae as the main Roman cross-Channel port.

It was discovered in 1970 by the Kent Archaeological Rescue Unit and, as it houses some of the finest example of Roman murals in Britain (over 400 sq ft (37 m2).

Above a lower dado of red or green, an architectural scheme of multi-coloured panels framed by fluted columns is still visible.

This Bacchic link, and the building's proximity to the baths, port and fort, has been said by some to suggest that the Painted House was once a brothel.

A small amount of the fort remains is now visible, on request, at Dover Library and Discovery Centre (the former White Cliffs Experience), and a public house off Market Square is built on and named after the Roman Quay.

The town council had plans to build a car park on the site, when the Kent Archaeological Rescue Unit (KARU), led by Brian Philp, began to find Roman remains.

Other artefacts including an extremely important glass vessel are kept on the site, attracting academic study in recent years.