Emmerich am Rhein is known for being the last German town on the Rhine before the river flows into the Netherlands.
The modern structures in the town are easy on the eye, making it popular with architectural fans. However, as you walk through the broad avenues of the city and marvel at all that is new and modern, remember that the last town on the Rhine was almost wiped off the map in WWII.
Allied forces destroyed 97% of Emmerich am Rhein with bombing, and then used the area as a staging ground for further conquests in the Ruhr valley. The local Rhine museum has pictures of what the city looked like before the war, and if you are ambitious you can do a walkabout and try to place the old images over the new structures.
Yet the new structures really do stand out. The Holy Ghost Church was built in 1966, and has a cross made out of scrap metal. The year before, the Rhine Bridge was opened, stretching 500 meters out to be the longest suspension bridge in Germany. The PAN-Forum/Poster Museum is a cubist glass and wood structure.
So if you like buildings and photo opps, Emmerich is heaven. :-)
This town is also heaven if you like water. You can rent boats to paddle in the river or take a river cruise from the marina. Even just walking the shore is entertaining as the ships go back and forth and the Netherlands is seen on the horizon.
Thus, while there are no old buildings for touristic treats here, you can still have a nice day out in Emmerich. Watch the river, take photographs of the building and of course, save room for dinner. The fisheries of the town ensure that at night you will be able to indulge in a lovely meal of fresh fish. :-)