As the U.S. approaches the ten-year anniversary of 9/11, murals of remembrance have been spotted all over New York City.

Some murals contain inspiring messages, while others commemorate the towers that once stood.

In just over a month, President Barack Obama will visit the World Trade Center Memorial, which will officially open on Sept. 11, 2011.

The President will be joined by former president George W. Bush, along with New York Mayor Michael Bloomberg.

On the same day, the President and First Lady Michelle Obama will attend events in Shanksville, Pa. and at the Pentagon in Northern Virginia.