The current storefront is a minimal grid of aluminum and glass, exposing an interior atrium with rubber floors and metal finishes.

The Main Building is a three-story building with an interior atrium opening to the northeast.

It includes 33 courtrooms that are 3,000 to 3,500 square feet, one 5,000-square-foot courtroom for special proceedings and an interior 223-foot-high atrium.

The building was unusual for its time, incorporating an interior atrium.

The tower would have featured an interior atrium, starting on the 15th floor and ending way up to the 40th floor.

The interior atrium is open to a two-story rotunda with arched openings to the second-level walkway.

To accomplish that, he said, the developer plans to convert an interior atrium into a second core, with an elevator and bathroom amenities.

As the architect spoke, he gazed out across the vast interior atrium and onto a two-story wall of sheet rock.

The expansive interior atrium is now home to shops, federal offices, entertainment space and a food court.

He said the building, with a glass-enclosed interior atrium and views of a refurbished park on Greeley Square, fit those requirements.