During your stop in Fischeln, check out the restaurants, and jump on the metro at Fischeln U-Bahn to see more of the surrounding area.
Visitors to Traar like its archaeological sites and gardens, and Golfclub Elfrather Muhle is a sight worth a stop.
You'll enjoy the museums and historic sites in Linn. You might want to make time for a stop at German Textile Museum or Rhine.
If you're looking for some top things to see and do in Gellep-Stratum and surrounding area, you can visit German Textile Museum and Kaiserpfalz Kaiserswerth.