Crossword puzzle clue "building in a park"

Basic building block of basic building blocks

Building block of a building block

___ Building, company headquarters erected in 1908 in New York City, at the time the tallest building in the world

Building in a park.

Park Avenue's ___ Building

Shakespeare in the Park theater, in Central Park

"BAREFOOT IN THE PARK PARK"

Chelsea Park-to-Bryant Park dir.