Archways to empty spaces

Last Saturday on my way back from the Vienna airport I decided to pull off to the side of the road and take a quick photographic journey. About 20km from Bratislava, in the Austrian countryside is this huge arch in the middle of a field, lined by a strand of trees. To add to this surreal picture are hundreds of massive electric generating windmills dotting the surrounding horizon. I'm not 100% sure of the story behind the arch other then it is part of a much larger archeological park displaying the ruins of a extensive ancient Roman colony. We hope to come back this weekend and check it out more in detail. I'll keep you posted.