Begun under Ptolemy I in the 3rd century BC, which institution was the greatest library of the ancient world?

Built in 691, which Muslim shrine in Jerusalem got a newly gilded dome in the 1990s? Built in Asia in the 1930s as a military supply route, which road stretches from Kunming to Lashio? Built in Boston in 1723, which house of worship is officially known as Christ Church? Harvard's Widener Library, opened in 1915, was built in memory of a victim of which tragedy? Built on landfill, San Francisco's Marina District was one of the areas hardest hit by which 1989 event? Built to hold 10,000 prisoners, which Confederate prison camp in Georgia often held about three times that number? Bulgaria's "Mila Rodino", which means "Dear Homeland", is its national what? Bull elephants rarely fight, but bulls of which "elephant" marine mammal often battle it out for mates?