A national memorial in which city marks the site of the April 19, 1995 bombing that killed 168?

Which nation on the Adriatic Sea has Tirana as its capital? Which of these is a national capital on the Arabian Peninsula? A National Historic Landmark since 1964, which bridge links two New York City boroughs and bears the name of one of the… A national vaccination campaign was held in 1976 to prevent an epidemic of which disease that never materialized? A National Monument in Cork, the second city of which country, honors Irish rebels including those of 1798? A national weapons lab in Livermore, California, is named for which physicist who invented the cyclotron? Which nationally syndicated columnist also hosted the TV show "Firing Line" from 1966 to 1999? What is a nation's fleet of commercial ships called?