Danubian Principalities
The Danubian Principalities (Principatele Dunărene) were Moldavia and Wallachia, autonomous tributary states on the lower Danube under Ottoman suzerainty until they united in 1859 as the nucleus of modern Romania.
Danuri Aquarium
다누리아쿠아리움 (Danuri Aquarium), Danyang County, South Korea's public freshwater aquarium; opened 2012, expanded 2025 to 4,870 m², 203 tanks, 319 species, about 30,000 fish; largest freshwater fish aquarium in Asia.
Danvers, Massachusetts
Danvers, Massachusetts, formerly Salem Village, is a town of about 28,000 in Essex County, 20 miles northeast of Boston; site of the 1692 witch trials, Rebecca Nurse Homestead, Oniontown nickname, and Danvers State Hospital.
Danville, California
Danville, California: an incorporated town (1982) in Contra Costa County's San Ramon Valley, East Bay, population about 43,000. Known for historic downtown, San Ramon Valley schools, high incomes, and $1.68 million median home values.
Danville, Virginia
Danville is an independent city in southside Virginia near the North Carolina border. Founded in 1793 as a tobacco inspection station, it had 42,590 residents in 2020.
Danyang UNESCO Global Geopark
Danyang UNESCO Global Geopark (단양 유네스코 세계지질공원) is a 78,100-hectare geopark covering all of Danyang County, South Korea, designated by UNESCO in April 2025 for limestone karst landscapes, over 200 caves, and 43 geosites recording 1.3 billion years of geological history.
Danzhou Old City
儋州故城 (Danzhou Old City), also Zhonghe Ancient City, a walled Tang-to-Qing prefectural seat in Zhonghe Town, Danzhou, Hainan, founded 622 AD; national heritage site since 2006 with surviving Zhenhai and Wuding gates.
Dao Vallis
Dao Vallis is a large Martian outflow channel, over 700 km long and up to 2.7 km deep, on the eastern Hellas basin rim; IAU-named in 1979 from Thai for "star", it extends Niger Vallis from Hadriacus Mons.
Daphni Monastery
Daphni Monastery (Μονή Δαφνίου), an 11th-century Byzantine monastery in Haidari near Athens on the Sacred Way, famed for its gold-ground mosaics including the dome Christ Pantocrator; UNESCO World Heritage Site since 1990 with Hosios Loukas and Nea Moni.
Dapingding Tropical Botanical Garden
Dapingding Tropical Botanical Garden (大坪頂熱帶植物園) is a free, 24-hour urban tropical botanical garden in Siaogang District, Kaohsiung, Taiwan. Opened January 1, 2010 near Fongshan Reservoir, it holds 500+ species and 60,000+ plants across themed zones and four trails.
Daqing (大庆)
Daqing (大庆, "Great Celebration") is a Heilongjiang oil city built around China's largest oilfield, discovered in 1959; it made China oil-self-sufficient in 1964, held a 27-year production plateau, and is now transitioning its economy.
Daqingshan Biosphere Reserve
Daqingshan Biosphere Reserve (大青山生物圈保护区) is a UNESCO biosphere reserve in the Yinshan Mountains of Inner Mongolia, China, designated in 2025 to protect forests, shrubs, and grasslands.
Dar al-Manasir
Dar al-Manasir, Arabic for "Land of the Manasir," is the Nile valley at the Fourth Cataract in Northern Sudan, flooded by the Merowe Dam reservoir in 2008.
Dar bel Amri
Dar bel Amri (دار بلعامري, Dar Bel Hamri) is a town, rural commune, and archaeological site in Sidi Slimane Province, Rabat-Salé-Kénitra, Morocco, near the Beht river and the Roman-era Rirha site; 2004 census population about 31,000.
Dar Buk-Ammarah
Dar Buk-Ammarah (Dar Buc Ammera, Villa Zliten), a Roman coastal villa at Zliten, Libya, near ancient Sugolin and Lepcis Magna; discovered 1913, famous for gladiatorial and Four Seasons mosaics now in Tripoli's museum.
Dar es Salaam
Dar es Salaam is Tanzania's largest city, main seaport, and economic hub, former capital until 1975, with over 7 million people, a BRT system since 2016, and a port handling 90 percent of national trade.
Dar es Salaam Region
Dar es Salaam Region (Mkoa wa Dar es Salaam), Tanzania's only fully urban region, established 1972 from Pwani Region; 5,383,728 residents in 2022, five districts, over 17 percent of national GDP.
Dar Masalit
Dar Masalit is the homeland of the Masalit people in far western Darfur, Sudan, along the Chad border, and the sultanate they established there, autonomous from 1874.
Dara Khera Mound
Dara Khera Mound, Thanesar, Kurukshetra, Haryana: the ASI-protected Raja Harsh-ka-Tila archaeological mound, about 1 km by 750 m and 15-18 m high, with a Kushana to late Mughal cultural sequence.
Darago Fluctus
Darago Fluctus is a 775-km-wide lava flow terrain (fluctus) on Venus at 11.5S, 313.5E, IAU-approved in 1994 and named for a Philippine volcano goddess.
Darbel Bay
Darbel Bay (Marin Darbel Bay) is a bay on the Loubet Coast, west Graham Land, Antarctic Peninsula, at 66°30'S 65°55'W, bounded by Cape Bellue and the Darbel Islands and studied for its tidewater glaciers and seafloor moraines.
Darbhanga (district)
Darbhanga district, Bihar, India: North Bihar district in the Mithila region, established 1875 from Sarkar Tirhut, headquarters Darbhanga city, seat of the Darbhanga Raj maharajas; 2,279 sq km, 3.94 million people (2011), 18 blocks, 3 subdivisions.
Darbhanga (दरभंगा)
Darbhanga (दरभंगा), also called the heart of Mithilanchal, is a city in North Bihar and headquarters of Darbhanga district and division, Bihar's fifth largest city, with 371,356 town residents (2011), Maithili culture, and a rapidly expanding UDAN airport.
Dardanelles
Dardanelles (Çanakkale Boğazı), ancient Hellespont: Turkish strait linking the Aegean and Sea of Marmara, about 62 km long with a two-layer exchange flow, governed by the 1936 Montreux Convention and site of the 1915 Gallipoli campaign.
Dardanus Sulcus
Dardanus Sulcus is a 1,500 km grooved-terrain sulcus on Jupiter's moon Ganymede, IAU-named in 1979, formed by extension and right-lateral strike-slip faulting and mapped in USGS quadrangle Jg-6.
Darebin
City of Darebin, a Melbourne local government area about 5 km from the CBD, formed in the 1990s by amalgamating Northcote and Preston; 148,570 residents at the 2021 Census, seat at Preston.
Darenth
Darenth, a village in Dartford, Kent, on the River Darent, site of one of Britain's largest Roman villas (2.6 ha, list entry 1012965), an Anglo-Saxon settlement, and Mesolithic to Iron Age occupation.
Darentiaca
Darentiaca: Roman mutatio (road relay) on the Valence–Gap road in the Drôme, France, named in the 333 Bordeaux Itinerary; identified with La Maladrerie near Saillans, XII miles from Aouste and XV from Die.
Dargues
Dargues (Dargues Roman camp) is a scheduled Roman temporary marching camp in Rochester parish, Northumberland, England, first century AD, 300 m by 194 m with four clavicula-defended gateways, beside Dere Street.
Darién Gap
The Darién Gap, in Spanish Tapón del Darién, is a roadless stretch of rainforest and swamp on the Colombia–Panama border, the only break in the Pan-American Highway.