One cannot walk the National Mall these days without spotting a line of Segway riders — like chicks behind a mother hen — following a tour guide. Three companies offer Segway tours. For updated tours, schedules and pricing call the numbers or click on the links below. Capital Segwayühttp://www.capitalsegway.comü202-682-1980 Segs in the Cityühttp://www.segsinthecity.comü800-734-7393 City Segway Toursühttp://citysegwaytours.com/washington-dcü877-734-8687