Tony had taken point on setting the explosions at the foundation, leaving Steve to set his around the machinery in the main room. He gazes for a long few moments at the murdered Soldiers, wondering who they might have been, if they'd been born into a different life, a different time.

He's on the far side of the chamber, carefully sticking plastic explosive to a load-bearing wall, when slow movement catches his attention. Turning, he sees Bucky staring at the chair in the middle of the room, the one he hasn't been able to look at or think about too closely.

Quietly he finishes his task and comes over until he's standing beside Bucky.

"This is where they put you?"

It's hardly more than a murmur, but in the silent, echoing chamber it's clear as a bell.