Standing side-by-side as part of the Prudential Center complex are the Prudential Tower on the left and 111 Huntington Avenue on the right. These two skyscrapers owned by Boston Properties demonstrate distinctive architectural styles from different eras. The Pru was built in 1964, while the R2-D2 building, a nickname given because of its distinctive roof that resembles the robot from Star Wars, was built in 2002.