Centrope is a Euroregion which involves four countries: Austria, the Czech Republic, Hungary and Slovakia. It is a business region, a cultural region and a region for scientific develepoment. The specialty of the region is that despite its size it includes four very important cities from the whole Central European region: Vienna, Bratislava, Brno and Győr.
With the twin capitals of Vienna and Bratislava only 60 km apart and Győr and Brno also nearby this region could truly be a well organized business center of the whole region. Their is also a touristic and cultural dimension, which extends much further to all four countries. Of course the cultural bond is very strong since all four countries share a common history belonging to one state for hundreds of years.
Even though the site http://www.mycentrope.com/ doesn't operate in english I suggest you pay a visit there I you speak Hungarian, Czech, Slovak or German.