Yes, there are hundreds of cities in Europe.
No cities were established by Columbus.
Columbus is credited with making the European discovery of America, but he did not discover any cities. Cortez and Pissarro discovered and conquered cities in what is now Mexico and Peru
There are eighteen different cities named Columbus in the US.
Xanten is located in Germany.
There are thousands of cities in Europe.
Yes and he brought some back to Europe with him
Town homes in Columbus can be located at any of the local realtors. One such is http://www.rentals.com/Ohio/Columbus/ Most cities have numerous real estate companies to choose from.
Europe
Columbus Clevland
Columbus went back to Europe. He was an explorer, not a colonist.
There wasn't any at that time. It comes later.