The largest Starbucks in the world is a window into the future of the brand

Visiting the Starbucks Reserve Roastery and Tasting Room is an experience unlike any other - and it's key to understanding the future of the coffee giant.

The 15,000-square-foot location combines coffee production, menu testing, and architectural whimsy in a way that can't be found anywhere else in the world.

Serving up drinks like the $10 Nitro Cold Brew Float, made with coffee roasted on location, it's a testament to the coffee giant's willingness to innovate in a constantly changing coffee culture.

The Roastery opened in December 2014, and has been described by the company as the future of Starbucks. Currently, Starbucks is in the process of opening two more Roasteries, in New York City and Shanghai.

In an effort to get a glimpse at the next era of Starbucks, Business Insider visited the Roastery in Seattle.