The most unusual buildings Google has turned into offices, from a Swiss brewery to an airplane hangar

• Google is known for its quirky office culture and offices that encourage collaboration with large open spaces.
• The company has converted a number of unusual spaces into offices, including a former airplane hangar, a former vodka factory, and two former Nabisco factories.
• Here are some of Google's most interesting office conversions.
• Visit Business Insider's homepage for more stories.

Google started in a garage, but now its employees work in some of the most unusual offices in all of tech.

The company seems to have a knack for seeing potential in old warehouses, factories, or storage facilities, even if they've been sitting empty for years.

In many cases, architects keep the structure of the building, and add windows and skylights to let in light while knocking down walls and making an open space. Modern architecture gets a classic feel from the original features that remain, and Google offices often keep some signs or pieces that reflect the building's earlier uses.

While this isn't to say every Google office is in a gigantic, renovated factory, the company does have several buildings that are on their second or third lives, with interesting histories. Here are a few of them.