Plovdiv is the second-largest city in Bulgaria. Plovdiv is situated in a fertile region of south-central Bulgaria on the two banks of the Maritsa River.
The city has historically developed on seven hills, some of which are 250 m high. Because of these hills, Plovdiv is often referred to in Bulgaria as "The City of the Seven Hills".
There are many remains preserved from antiquity such as the ancient Plovdiv Roman theatre, Roman odeon, Roman aqueduct, Roman Stadium, and others.
On 5 September 2014, Plovdiv was selected as the Bulgarian host of the European Capital of Culture 2019.