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Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.

Around 7,500 American flags cover Art Hill in front of the St. Louis Art Museum in honor of the 20th anniversary of 9/11. Each flag represents the life of a military member lost since the attacks on 9/11, as well as, 412 flags for the first responders who died that day. The flags also carry a photo and the dog tags of each person.