A dedication ceremony for the 9/11 Memorial Museum took place this morning with Governor Christie and President Obama in attendance. Built below ground at the World Trade Center site it opens to the general public on May 21st.

The $24 entry fee has been defended as necessary to fund an annual budget of $63 million. The museum contains 10,000 artifacts, a pair of seven-story steel tridents which were part of the Twin Towers’ exterior framework standing in a vaulting glass atrium, a 210-foot-long masonry wall that tracks the original footprint of the North Tower, and much more. Read more about it here.