The San Lorenzo Columns stand out as the oldest remains of the ancient Mediolanum. They date back to the Roman period, constructed somewhere between the 2nd and the 3rd century, moved to their present location in the 4th century (in all likelihood, they were part of a bath complex). They now border the square in front of the Basilica of San Lorenzo Maggiore, it too one of the first hand tourist sights of Milan.
The place is generally packed with student population, though visitors concerned with safety might want to avoid the square after dark. The area, in fact, is famed for its bustling nightlife vibe: people come here and sit, talk, drink and smoke. Some might find it a little too far fetched, but others see it as one of the places where tourists can make the best of their nocturnal pursuits in Milan.
And what a peculiar juncture: the oldest remains of the ancient Mediolanum mark the borders of the most youthful and effervescent set in Milan. Keep in mind the popular Parco delle Basiliche, which stretches between the Basilica of San Lorenzo Maggiore and the Basilica of Sant’Eustorgio is just a few steps away, offering a nice sweeping view of the columns and of sections of the two places of worship.
The Guastalla Garden is located in southeast Milan. Laid out in 1555, is, thus, the oldest park of the city. It is one of the most crowded parks in Milan.
The Basilica of San Lorenzo Maggiore of Milan is located in a piazza bordered, in the opposite site, by a row of columns dating back to the 2nd century.
The Civic Museum of Archeology of Milan features collections of vestiges of the old Milan, and of the past Roman, Etruscan and Greek civilizations.