The guard must have gone into the building because he was no longer outside.

He could even choose to go back into the building.

I hadn't seen anyone go into the building or come out of it.

The two men who had gone into the building were almost of a size.

I went back into the building, to the pay phone in the corner.

She took his hand and they went into the building.

But that money will go right back into the building, he said.

He wanted a full magazine going back into the building.

She held to him, turned, and went into the building.

It can be seen for free without going into the building.