Cella Septichora Visitor Centre - Cella Septichora: This late Roman building with seven foils, built in the 4th century has a ground-plan which makes it unique in the area of the river Danube.

There’s Bachman & Bachmann Architects’s Cella Septichora Visitor Center in Hungary, which has a translucent concrete wall that plays dazzling light tricks. In each case, ...