A photo from my evening stroll in Central Park
Accommodations for my conference in New York City were at St. Thomas Choir School, on 58th Street just south of Central Park. I had a couple of lovely strolls through the park.
Eventually I did some research -- and I learned that both buildings, are (in fact) high, even by Manhattan standards.
The first tower is being built next door to St. Thomas Choir School, at 225 West 57th Street. It's called the Central Park Tower; construction began in 2014 and the overall cost is $3 billion. Once complete, it will rise 1,550 feet (131 stories). This means it will be North America's second-tallest skyscraper (even taller than the Sears Tower)!
There's some interesting legal wrangling related to the Central Park Tower. The project's developer, Extell, paid $31 million for 6,000 square feet of air rights and the ability to build a cantilever that extends above a neighboring building owned by the New York Art Students' League.

The second tower will be located at 111 57th Street, and it will be 1,428 feet tall. I kept noticing that the top of this building seems especially narrow, and my research indicated that it will indeed be the skinniest of New York's major skyscrapers.
I also learned that 57th Street is nicknamed Billionaires' Row. These two new skyscrapers are definitely going to solidify that reputation!
On Friday, I visited an exhibition at the Art Students' League (Perhaps I was curious to see if there were any lingering signs of the litigation?!). This was one of the paintings.