(April 2014) Angiography or arteriography is a medical imaging technique used to visualize the inside, or lumen, of blood vessels and organs of the body, with particular interest in the arteries, veins, and the heart chambers.
U.S. Virgin Islands. The U.S. Virgin Islands quarter is the fifth in the 2009 District of Columbia and U.S. Territories Quarters Program. These islands, located in the Caribbean Sea east of Puerto Rico, were explored by Christopher Columbus in 1493.
With a population of less than 60,000 people, the entire surface area of the Marshall Islands is less than 175 total square miles! That country is quite tiny! Located in the northern Pacific Ocean, the Marshall Islands are, as the name would suggest, an island country, and actually borders the #2 country on our list.