Where is Barrow ?

Well that depends which Barrow you are looking for. There are many places on earth called Barrow, and even one on the moon, here is some information regarding a few of them you might enjoy reading.

Barrow in Furness, Cumbria, England.
Barrow in Furness is a fairly large Town located on the coastline in the Lake District. It is in the North West region of the UK. The town has a population of just over 70,000 and is most well known for its nuclear submarine and ship building facilities. You can see a map of Barrow here.

Further reading: http://en.wikipedia.org/wiki/Barrow-in-Furness

Barrow, Alaska.
Barrow, Alaska is a city located in the North Slope Borough of the U.S. state of Alaska. According to 2005 Census Bureau the overall population of the city was estimated at only 4,218. Barrow, Alaska takes its existing name from Point Barrow, which was named for Sir John Barrow of the British Admiralty in 1825, before this it was known as Ukpiagvik by the Inuit’s who lived there.
Further reading: http://www.welcometoalaska.com/barrow.htm

Barrow upon Humber, North Lincolnshire, England.
Barrow upon Humber is a village, the 2001 census lists Barrow’s population to be 2,745. The village of Barrow on Humber is located about two miles south of the Humber River, and at the end of the Humber Bridge.
Further reading: http://www.genuki.org.uk/big/eng/LIN/Barrow/

Barrow Crater, The moon.
Barrow is also the name of a crater on the moon which is situated close to the moons northern limb. It lies between the Goldschmidt crater and the Meton crater. The population of the moon is zero. The depth of Barrow crater is a massive 3.2km deep and its diameter is 92 km.