At the western end of the structure is a vaulted open gallery constructed simultaneously with the church.
At one stage, six vessels were being constructed simultaneously.
The historical records clarify that the fortified complex existed prior to both the simultaneously constructed masjid and shrine it houses.
The Tower was built using the "top-down" technology, with both the over- and underground parts of the structure being constructed simultaneously.
The second group was constructed simultaneously with the first group, but at Fore River Yard at Quincy.
The project was constructed simultaneously in two phases.
As those were not constructed simultaneously, they differ slightly in their outer appearance.
The station was constructed simultaneously with the sanatorium, the Sestroretsk Kurort.
While constructing the dam, a temple of God Hanuman was simultaneously constructed.
In order to ensure the commissioning of the station and ferrying it was constructed simultaneously from both sides.