Question: Hangar-7 is a building in Salzburg, Austria, hosting a collection of historical airplanes, helicopters and Formula One racing cars,Hangar-7 is owned by which Red Bull founder, and an Austrian billionaire businessman? 
Sentence (from "Hangar-7"): The building is airfoil shaped, constructed of 1,200 tons of steel and 75,000 sqft of glass surface.
Relevant evidence: No