It is located in close proximity to the cities of Yambol and Nova Zagora.
West of the city lies the so-called Peach Valley which contains large peach orchards.
It is a rock protrusion with an interesting, yet peculiar hole in the center.
According to myth, one would have their most sincere wish granted upon passing through the ring.
Sliven Municipality is situated on the sub-Balkan plain in the zone of transitional-continental climate. According to the Bulgarian National Statistical Institute, as of February 2011, the total population of the Sliven Municipality is 125 268 inhabitants while in the city of Sliven live 91 620 inhabitants.
In the region of Sliven, winter is mild and summer is relatively warm. Total: 91,620 In Sliven Municipality 88750 declared as Bulgarians, 12153 as Gypsies, 4209 as Turks and 18641 did not declare their ethnic group.
Top: Panorama view of Downtown Sliven, 2nd left: Sliven City Hall, 2nd right: Stefan Kirov Drama Theater, 3rd left: Monument of Hadji Dimitar, 3rd right: Hadji Dmitar House Museum, 4th left: Saint Dimitar Cathedral, 4th right: Sliver Clock Tower, Bottom left: A bust chieftain of Hadji Dimitar in Dmitar House Museum, Bottom right: Slivenski Bit Museum) is the eighth-largest city in Bulgaria and the administrative and industrial centre of Sliven Province and municipality.
Sliven is famous for its Bulgarian Haiduts who fought against the Ottoman Turks in the 19th century and is known as the "City of the 100 Voyvodi", a Voyvoda being a leader of Haiduts.Investors are exploring the opportunity to use the famous local wind (Bora) for the production of electricity.In times of the Ottoman rule Turkish officials used to hang Bulgarian revolutionaries on it.Today the city is helping the tree live on by frequent evaluations and reinforcing its base. On 19 March 2014 the results of online poll were revealed at a ceremony in the European Parliament.The Old Elm was voted European tree of the year 2014.Sliven Peak on Livingston Island in the South Shetland Islands, Antarctica is named after Sliven.