| Porta Nigra, one of four gates used in Roman times. This one is the only one still standing. | 
| We also visited the Cathedral of St. Peter and the Church of Our Lady. | 
| Römerbrücke, or the oldest bridge in Germany. The pillars are as old as the 2nd century! | 
| Palace of Trier | 
| Constantine's Basilica. I love the fisheye lens. | 








