2001 - Attacks on World Trade Center towers and The U.S. Pentagon

Terrorist attacks on World Trade Center towers in New York, and The Pentagon, near Washington, D.C.

image source: https://www.courant.com/opinion/op-ed/hc-op-warshauer-sept-11-0911-20200911-tyhiw7ncwnf3rccv6voo7mjjpi-story.html