Location: Maryland, USA; Illinois, USA; Washington, USA; Reston, VA, USA; Gaithersburg, MD, USA; Rockville, MD, USA; McLean, VA, USA; Bethesda, MD, USA; Silver Spring, MD, USA; Miami, FL, USA; West Palm Beach, FL, USA; Northbrook, IL, USA; Fort Lauderdale, FL, USA; Highland Park, IL, USA; Vernon Hills, IL, USA; Belfast, UK; Northern Ireland, UK; Illinois City, IL, USA; Potomac, MD, USA; Laurel, MD, USA; London, UK; Los Angeles, CA, USA; Maryland City, MD, USA; Washington, DC, USA; Chicago, IL, USA; Mitchellville, MD, USA; Centreville, MS, USA