The most elegant mansion in Ploiești is popularly known as the Wedding Palace, a name it earned after serving as the city’s registry office. Before that, the property was privately owned by two successive mayors — father and son, both named Radu Stanian — who governed Ploiești around the turn of the 20th-century. At that time, the house was far more modest. Its present grandeur is the result of a major reconstruction in 1926, which introduced elements of the national architectural style so successfully that the building now stands as a textbook example of Romanian architecture.
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Muzeul Ceasului Nicolae Simache
A charming and unique collection of over 1000 sundials, astronomical clocks & vintage watches, that were once owned by famous Romanians, including King Carol I, displayed in a 19th-century magistrate's home.
Muzeul Județean de Artă
Housed in an elegant mansion near the city centre, this museum showcases a diverse collection of Romanian fine art, spanning classical paintings, modern works, and local artists.
Muzeul Casă de Târgoveţ - Casa Hagi Prodan
The house of Hagi Prodan from 1785 is the oldest standing non-religious building in the city. It's an example of old Romanian architecture with Oriental details with covered porch and carved wood pylons. Now it's a museum giving a view into the lifestyle of an 18th-century rich merchant living in Ploiesti.
Casa Dobrescu
Building from the late 18th century, nowadays housing a museum about the writer Ion Luca Caragiale (1852–1912).
Galeria de Arta
Small art gallery in the city centre.
Muzeul Național al Petrolului
The museum offers a comprehensive look at Romania’s pioneering role in the global oil industry. Through a fascinating collection of vintage machinery, historic photographs, models, and documents, it traces the development of oil extraction and refining from the 19th century to today.