Neuburg an der Donau has a defensive wall around the old town. The old town contains some well worth seeing institutions and happenings, such as the 'Birdland Jazz Club Neuburg', one of the best locations for jazz auditions in Germany.
The Renaissance Ducal Palace (Pfalz-Neuburger Residenzschloss), Neuburg Castle, which was built 1530-45 under Otto Henry, Elector Palatine and took on its present-day form during the reign of Philip William, Elector Palatine, today houses several museums including a Baroque gallery of the Bavarian State Picture Collection and the Archäologie-Museum Schloss Neuburg an der Donau (Neuburg an der Donau Castle Archaeology Museum), a branch of the Bavarian State Archaeological Collection. To the other main sights belong also the late Renaissance court church Hofkirche (1607/08 built by Josef Heintz), the Town Hall (1603/09), the rococoProvinzialbibliothek (Provincial Library, 1731/32) and the baroque churches of St. Peter (1641/46) and St. Ursula (1700/01). Grünau is a renaissance hunting lodge of Elector Otto Henry, which is situated 7 km further east.