CNN recently released a video in which Anderson Cooper enters the tunnel used by Mexican drug lord Joaquín Guzmán to escape from prison.
On Saturday, Guzmán, better known as "El Chapo," slipped through a 20-inch square opening in his cell and then climbed approximately 30 feet down to reach the mile-long tunnel, according to The Los Angeles Times.
The tunnel, which was just tall enough for the multi-billionaire to stand, even came with ventilation and lights. The tunnel also had motorized rails to help workers move dirt through when they were creating it.
Guzmán emerged in a house under construction outside the prison. Clothes were allegedly placed there for him.
The former chief of international operations for the Drug Enforcement Agency (DEA), Michael S. Vigil, told The Times the tunnel likely cost around $5 million and took around a year to build.
Here's Cooper exploring the tunnel as well as the descent to its entrance:
How sophisticated was #ElChapo's tunnel? @AndersonCooper goes inside a drug tunnel under the border http://t.co/CWdUaHxsPU — Anderson Cooper 360° (@AC360) July 14, 2015