Gabrovo (Bulgarian: Габрово) is a city in central northern Bulgaria, the administrative centre of Gabrovo Province. It is situated at the foot of the central Balkan Mountains, in the valley of the Yantra River, and is known as an international capital of humour and satire (see Gabrovo humour), as well as noted for its Bulgarian National Revival architecture. Gabrovo is also known as the longest city in Bulgaria, stretching over 25 km[2] along the Yantra, yet reaching only 1 km (0.6 mi) in width at places. The geographic center of Bulgaria - Uzana is located near the city. The area around Gabrovo, inhabited since the Neolithic, gained economic importance after Veliko Tarnovo became capital of the Second Bulgarian Empire in the 12th century. Craftsmanship and trade prospered due to the proximity to both the capital and the Balkan passes. Medieval Gabrovo was a small pass village of about 100 houses.