☰Aquincum

The ruins of the Roman garrison town of Aquincum sit in the northern suburbs of Budapest. The highlight is the museum's reconstructed 3rd-century water organ, a genuinely rare artifact. The excavated streets, baths, and amphitheater give a sense of what life was like on the empire's Danubian frontier. It is a pleasant half-day trip, easily reached by the HEV suburban railway.