The Via Agrippa to the south-west was lined with cemeteries on both sides for several kilometres outside the city gates. A huge necropolis stretching from “Bobstraße” road via Weißhaus Park to “Sülzburgstraße” road contained over 1,600 graves and tombs that have been identified to date. Many contained precious grave goods: ornate glassware, luxury items made of metal, amber or jet (gemstone). Today, most of these are housed in the Romano-Germanic Museum in Cologne.
In park-like surroundings at Luxemburger Straße 201 in Cologne-Sülz district stands the Weißhaus building, the former summer residence of the abbots of St Pantaleon. Built on the foundations of a medieval predecessor in the 17th century, the baroque castle is surrounded by an artificial pond fed by the Duffesbach stream.
Destroyed during the Second World War, the manor house was rebuilt in the old style and is now privately owned.