Yes, that's right ... right over here at 110 Third Ave. near 14th Street.
Here's the Corcoran listing:
"Private roof cabana – 479 square feet. Stunning views of downtown, the river and the Manhattan skyline."
And here it is... what you get for $199,000:
One catch: It's only available for purchase with apartment 18C. (Or if you happen to already live at 110 Third Ave.) And 18C is going for $2.499 million.