Manhattan from top of Empire State Building East.

American Copper Buildings (originally known as 626 First Avenue) are a dual-tower residential skyscraper in the Murray Hill neighborhood of Manhattan.

The exterior of the buildings are clad in copper. As of April 2016, the copper exterior has begun to patina, and the structures will eventually change color entirely. The two towers are designed such that they appear to "dance" with each other. They are also connected by a bridge approximately 300 feet from the ground, which is three levels in height. The taller tower is 540 feet in height, and the shorter tower is 470 feet tall.

To the left is the Corinthian Building, 645 First Avenue, 56 floors. To the right is the 300 East 34th Street Building.

Photo 0337d, Sept 2018