Medical Definition of dorsiflexion. : flexion in a dorsal direction; especially : flexion of the foot in an upward directionâcompare plantar flexion.
Willis Tower. The Willis Tower, built as and still commonly referred to as Sears Tower, is a 108-story, 1,450-foot (442.1 m) skyscraper in Chicago, Illinois, United States.
The Taipei 101 also known as Taipei World Financial Center in past was the worlds tallest building before the Burj Khalifa topped out in 2010. The year 2011 brought the skyscraper LEED Platinum certification for being the worldâs largest and tallest green building.