Travelling into Korea's demilitarised zone at Panmunjom
Korea remains divided, its border the most heavily armed on Earth. The demilitarized zone, a draw for travelers, extends 1.2 miles on either side of the line. You can visit only on a guided tour. What you will see: an observatory, a North Korean infiltration tunnel, the Joint Security Area where the two sides talk. Odd note: The DMZ is also a wildlife preserve.