O 21, laid down K XXI was an of the Royal Netherlands Navy that saw service during World War II.
Hoopa Airport is a public airport located on Airport road next to the Trinity river one mile (1.6 km) southeast of Hoopa, serving Humboldt County, California, USA.
Railway modelling has long used a variety of scales and gauges to represent its models of real subjects.
The O 21 class was a class of seven submarines, built for the Royal Netherlands Navy.
O21, O 21 or O-21 may refer to.
O21 (or Operation 21 formerly The Extortionist) is a 2014 Pakistani spy thriller film, directed by Jami, and Summer Nicks and produced by Zeba Bakhtiar and her son Azaan Sami Khan.
Otoyol 21 (Motorway 21), abbreviated as, a.k.a. Ankara-Tarsus Otoyolu or currently Niğde-Tarsus Otoyolu (Ankara-Tarsus Motorway or Niğde-Tarsus Motorway) or, is a partly complete toll motorway in the Central Anatolia and Mediterranean regions in Turkey.
The Thomas-Morse O-19 was an American observation biplane built by the Thomas-Morse Aircraft Company for the United States Army Air Corps.
058 is an area code used for cities in many countries.