A reconstruction of the Richborough triumphal arch as it may have looked from the waterfront in about AD 120.

Richborough Roman Fort, Kent

Richborough – or Rutupiae – was founded by the Romans after their invasion of Britain in 43 AD. Rutupiae was the major British port due to its position near the mouth of the Stour.

The most prominent ruin of Roman Richborough is the walls of the late- 3rd century fort, which formed part of defences against sea-borne raiders along the coast, known as the ‘Saxon Shore’. The site sits on what was once a small island or peninsula, which separated the Isle of Thanet from the mainland of Kent.

Source: Wikipedia