I took this photo
Look through the middle of the Arch, you can see the Empire State Building.
Here, I will zoom in for you.
The Empire State Building was built in 1930. It is on 5th Ave between 33rd and 34th Streets in Manhattan. It occupies the former site of the Waldorf Astoria.
When the sun is right it makes for a pretty picture. The trees, the Arch, and the iconic Empire State Building. As the crow flies, it is about 6 miles away.
Many nice photo can be seen at this website. This is the website of Richard Kessler he calls this the Brooklyn Mirador and claims that it is not a coincidence. Before the intersection of 5th Ave and 34th Street was the original location of The Waldorf, it was just 350 Fifth Ave.
"In 1865, as the Civil War ended, the Brooklyn Park's elliptical entrance plaza was planned so its axis would point at the 350 Fifth Avenue mansion of William Backhouse Astor. Astor was a leader of a group of influential Democratic politicians and merchants. This group, weeks after the election of Lincoln in November 1860, in order to prevent war or secession, held the 'Pine Street Meeting'. They appointed a committee headed by former President Fillmore that was to assure the South and Jefferson Davis of their support to amend the Constitution to provide permanent protection for slavery. Their activities may have contributed to the atmosphere which led to the Draft Riots of July 1863 and continuing strong northern anti-Lincoln sentiment."
That is a lot of bla bla. It could be true, but if you look the other way the Arch faces South. It is a monument to the victory of the North over the South in the Civil War.