WASHINGTON DC - CIRCA JUNE 2009: Pentagon building circa June 2009 in Washington DC, USA. The Pentagon is the world's largest office building by floor area, with about 6,500,000 sq ft.
Editorial use only
Editorial credit: Vacclav / Shutterstock.com

Royalty-free stock photo ID: 64399435

WASHINGTON DC - CIRCA JUNE 2009: Pentagon building circa June 2009 in Washington DC, USA. The Pentagon is the world's largest office building by floor area, with about 6,500,000 sq ft.