Düzce

Kelesa was a coastal town of ancient Bithynia on the Black Sea inhabited during Roman times. Its name does not occur in ancient authors, but is inferred from epigraphic and other evidence.

Lillium or Lillion (Ancient Greek: Λίλλιον), or Lileon or Lileum (Λιλεόν), or Lilaeus or Lilaios (Λίλαιος), was a commercial town (emporium) on the Black Sea coast of ancient Bithynia, 40 stadia to the east of Dia. It is possible that the place may have derived its name from the Lilaeus, which Pliny the Elder mentions among the rivers of Bithynia.

Dia (Ancient Greek: Δῖα), also Diospolis (Διόσπολις), was a port city of ancient Bithynia on the Pontus Euxinus in Asia Minor. Marcian of Heraclea places it 60 stadia east of the mouth of the Hypius, which river is between the Sangarius River and Heraclea Pontica. The name in Marcian, Diaspolis (Δίας πόλις), may be a mistake for Diospolis, which Ptolemy has. There are some very rare coins with the epigraph Dias (Διας), which Sestini assigns to this place.

Akçakoca Castle, also known as the Genoese Castle, is a castle built on a cliff located between two bays, 2.5 kilometers west of Akçakoca, Düzce, Turkey. To the south of the castle, in the east and west directions, a high tower rises in the middle of the walls and a water cistern exists in the inner courtyard. The bricks and mortar used in the castle show similarities with the bricks and mortar used in other Genoese castles.

Melen Çayı, Düzce ilinin bir akarsuyudur. Havzasının %80'i Düzce ili sınırlarında kalır. Havza genişliği 2317 km²'dir. Aşağı kesimlerinde Düzce-Sakarya sınırını oluşturur. İsmini bulunduğu köyden alır.

Akçakoca Saat Kulesi, Düzce ilinin Akçakoca ilçesinde bulunan saat kulesi. Kule eski Akçakoca Merkez Camii minaresine 1954 yılında saat eklenmesiyle oluşmuştur. Orijinal minare mimarisinin korunduğu kulenin kenarları dar, cepheleri sekizgen planlı ve kubbesi kurşundur.

Gümeli Porsuğu is a yew tree (Taxus baccata) growing high in Zonguldak district of Black Sea Region, in Turkey. As of 2019, it was estimated to be 4,115 years old.

Düzce University is a university located in Düzce, Turkey. It was established in 2006 but its oldest unit, Duzce Vocational School, has existed since 1976. In 2008, the university joined the National Quality Movement and received an Excellence 4 Star Award by the Turkish Quality Association (KALDER), within the scope of EFQM (European Foundation for Quality Management).

Prusias ad Hypium (Ancient Greek: Προῦσα πρὸς τῷ Ὑππίῳ ποταμῷ) was a city in ancient Bithynia, and afterwards in the late Roman province of Honorias. In the 4th century it became a bishopric that was a suffragan of Claudiopolis in Honoriade. Before its conquest by King Prusias I of Bithynia, it was named Cierus or Kieros (Ancient Greek: Κίερος) and belonged to the Heraclea Pontica. Photius writes that it was called Kieros, after the river which flows by it.

Hypius or Hypios (Ancient Greek: Ὕπιος), also Hyppius or Hyppios (Ὕππιος), was a river of ancient Bithynia, not far westward from the Sangarius River. The river itself is very small; but at its mouth it is so broad that the greater part of the fleet of Mithridates was enabled to take up its winter quarters in it. According to the Periplus of Pseudo-Scylax, this river formed the boundary between the territories of the Bithyni and the Mariandyni.

Cumayeri District is a district of the Düzce Province of Turkey. Its seat is the town of Cumayeri. Its area is 113 km², and its population is 15,214 (2022).

Topçular, Düzce ilinin Çilimli ilçesine bağlı bir mahalledir. 2008 yılına kadar köy olan bu yerleşim birimi, 2008'de referandum sonucunda mahalle statüsü kazanmıştır.

Arabacı, Düzce'nin Çilimli ilçesine bağlı bir mahalledir.

The 1999 Düzce earthquake occurred on 12 November at 18:57:22 local time with a moment magnitude of 7.2 and a maximum Mercalli intensity of IX (Violent), causing damage and at least 845 fatalities in Düzce, Turkey. The epicenter was approximately 100 km (62 mi) to the east of the extremely destructive 1999 İzmit earthquake that happened nearly three months earlier. Both strike-slip earthquakes were caused by movement on the North Anatolian Fault.

Kaynaşlı District is a district of the Düzce Province of Turkey. Its seat is the town of Kaynaşlı. Its area is 237 km², and its population is 20,449 (2022).

Embolos was a town of ancient Bithynia, inhabited during Roman times.

Düzce Saat Kulesi, Düzce ilinin Merkez ilçesinde bulunan saat kulesi. Tonyalı İbrahim Usta tarafından Cedidiye Caddesi yakınlarında 1901 yılında inşa edilen ve 1925 yılındaki yangında harabeye dönen eski kulenin yerini alan yeni kule 2009 yılında Anıtpark Meydanı'na inşa edilmiştir.

On 23 November 2022, a magnitude 6.1 earthquake struck near Düzce, Turkey, at a depth of 10.6 km (6.6 mi). It left 2,917 buildings damaged or destroyed and indirectly killed two people.

Efteni Gölü, Düzce ili sınırlarında, Merkez ve Gölyaka ilçe sınırlarında yer alan, tektonik oluşumlu, tatlı su gölü. Düzce merkezin 10 km güneybatısı, Gölyaka merkezin 2 km doğusunda yer alır. Göl çevresinde 76 hektarlık alanda, 2005 yılında Efteni Gölü Yaban Hayatı Geliştirme Sahası kurulmuştur.

Güzeldere Şelalesi Tabiat Parkı, Düzce ili, Gölyaka ilçesi, Güzeldere köyü sınırlarında, 22,76 ha alanda, 2011 yılında ilan edilen tabiat parkıdır.

Aydınpınar Şelaleleri Tabiat Parkı; Düzce'nin Merkez ilçesi, Aydınpınar köyünde bulunan 100 hektarlık bir alandır. 25 Ağustos 2014 tarihinde Tabiat Parkı olarak ilan edilmiştir.

Düzce Ovası, Kuzey Anadolu Fay Hattı üzerinde oluşmuş, tektonik kökenli ova. Düzce ilinin batı kısmını oluşturan ovanın orta kısmında Düzce şehir merkezi yer alır.