The Twin Tower attacks on September 11, 2001, scarred the world for life. As a tribute to the people who lost their lives because of the attack, memorial reflecting pools were made. This is how the memorial pools are cleaned at night.
The Twin Tower attacks on September 11, 2001, scarred the world for life. As a tribute to the people who lost their lives because of the attack, memorial reflecting pools were made. This is how the memorial pools are cleaned at night.