Modern Bulevar Kralja Aleksandra was a starting section of the long Via Militaris, which connected Singidunum and Constantinople, and in more local terms, Singidunum with fortresses and settlements along the Danube border of the Empire, like Viminacium. Built in the 1st century AD, the road was wide, with rows of shops, forges and arsenals, while Romans were buried along the road in stone sarcophagi. Archeological remnants of the Roman road can still be seen below the "Depo", former depot of the city's public transportation company. Majority of boulevard's course is part of the "Ancient Singidunum" archeological locality.