Howard Stark's Warehouse

"There is another vault, considerably larger than the first."

- Edwin Jarvis

Howard Stark's Warehouse was a facility where Howard Stark stored some of his prototype vehicles.

Toy Vault
"I like a man with a vault full of toys."

- Ida Emke

Howard Stark met Ida Emke at a charity auction and flirted with her, spending a weekend together. Stark even took her to the warehouse where he stored many of his prototype vehicles to impress her, offering to fly a plane with her.

Emke told him that he had drunk too many Martinis to fly a plane, but Stark assured that she would be perfectly safe, given that three of the planes were able to fly themselves. Emke continued to seduce him, making him reveal that he had another vault at his his mansion as, unbeknownst to him, Ida Emke was actually a Soviet spy working for Leviathan and Johann Fennhoff.