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 Segway http://www.capitalsegway.com 202-682-1980 Segs in the City http://www.segsinthecity.com 800-734-7393 City Segway Tours http://citysegwaytours.com/washington-dc 877-734-8687