The Beverly Hills 9/11 Memorial Garden honors those lost in the September 11 attacks.

The National September 11 Memorial & Museum is a tribute of remembrance and honor to the nearly 3,000 people killed in the terror attacks of September 11, 2001.

The World Trade Center cross, also known as the Ground Zero cross, is a group of steel beams found amidst the debris of the World Trade Center site in September 2001.

The Sphere is a large metallic sculpture by German sculptor Fritz Koenig, displayed in Battery Park, New York City.

America's Response Monument is a life-and-a-half scale bronze statue in Liberty Park overlooking the National September 11 Memorial & Museum in New York City.

The Irish Hunger Memorial is designed to raise awareness about the Great Irish Famine.

Federal Hall, located on Wall Street, is now a National Memorial and Museum.

Group of Four Trees is a monumental sculpture located in Manhattan.

The African Burial Ground National Monument is located in Manhattan.

The Triumph of the Human Spirit is a monumental sculpture located at Foley Square.