What modern city, once called Constantinople, lies partly in Europe and partly in Asia?

a. Istanbul, Turkey
b.Damascus,Syria
c. Athens, Greece
d. Skopje, Macedonia

http://en.wikipedia.org/wiki/Constantinople

Read 1st paragraph

The modern city that was once called Constantinople and lies partly in Europe and partly in Asia is Istanbul, Turkey. To find this answer, you can refer to the Wikipedia page for Constantinople by following the provided link. Reading the first paragraph on the page will provide you with the correct answer.