Day 1 (building)
Day 1, also known as Amazon Tower II and Rufus 2.0 Block 19, is a office building in the Denny Triangle neighborhood of Seattle, Washington, located at the intersection of Lenora Street and 7th Avenue. It is part of the three-tower complex that serves as the headquarters of Amazon. The name "Day 1" previously belonged to two buildings on Amazon's South Lake Union campus, but both structures have since been renamed. The building's east facade features a large sign reading "Hello World". The construction project was the most expensive in the city to finish in 2016 amidst the recent downtown housing boom. The building also houses the prototype Amazon Go location, which opened to a private beta in December 2016 and to the general public on January 22, 2018. Design and construction The Amazon campus, designed by Seattle architecture firm NBBJ and landscape architecture firm Site Workshop, was approved by the Seattle Department of Planning and Development in late 2012. Excavation on the 37-story Tower II began under the direction of Sellen Construction in 2014. It opened on November 7, 2016. The project, covering the entire three-block campus, is also on track to receive LEED Gold certification. Spheres The block