Photos: DMZ tour offers trip through history

A symbol of the efforts to re-unify the Korean peninsula is seen near the Demilitarized Zone in the Republic of Korea, Aug. 13, 2014. The site is one of many stops on a tour of the DMZ, and is also where visitors can walk through a portion of the third tunnel discovered to have been dug by members of the Democratic People’s Republic of Korea in an attempt to invade the ROK. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

A symbol of the efforts to re-unify the Korean peninsula is seen near the Demilitarized Zone in the Republic of Korea, Aug. 13, 2014. The site is one of many stops on a tour of the DMZ, and is also where visitors can walk through a portion of the third tunnel discovered to have been dug by members of the Democratic People’s Republic of Korea in an attempt to invade the ROK. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

Visitors salute the War Memorial at Imjingak Park, Republic of Korea, Aug. 13, 2014. The memorial is the site of remembrance services held during Chuseok and the Lunar New Year for families who were separated as a result of the Korean War. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

Visitors salute the War Memorial at Imjingak Park, Republic of Korea, Aug. 13, 2014. The memorial is the site of remembrance services held during Chuseok and the Lunar New Year for families who were separated as a result of the Korean War. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

Kijong-dong, or Peace Village, is visible from a viewing platform near the Demilitarized Zone in the Republic of Korea, Aug. 13, 2014. The site is known as “Propaganda Village,” since it was constructed by the Democratic People’s Republic of Korea in an effort to portray an enticing lifestyle in the north, but is largely uninhabited. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

Kijong-dong, or Peace Village, is visible from a viewing platform near the Demilitarized Zone in the Republic of Korea, Aug. 13, 2014. The site is known as “Propaganda Village,” since it was constructed by the Democratic People’s Republic of Korea in an effort to portray an enticing lifestyle in the north, but is largely uninhabited. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

Members of the Republic of Korea and Democratic People’s Republic of Korea militaries maintain sight of one another in the Joint Security Area near the Demilitarized Zone on the Korean peninsula, Aug. 13, 2014. Visitors may also view the inside of the Military Armistice Committee building where meetings between the two Koreas are held. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)

Members of the Republic of Korea and Democratic People’s Republic of Korea militaries maintain sight of one another in the Joint Security Area near the Demilitarized Zone on the Korean peninsula, Aug. 13, 2014. Visitors may also view the inside of the Military Armistice Committee building where meetings between the two Koreas are held. (U.S. Air Force photo/Airman 1st Class Ashley J. Thum)