What you'll hear inside 9/11 Memorial & Museum:

• 1
  Water Mirrors (North and South Ponds)

  The two reflecting pools of the 9/11 Memorial each cover nearly an acre and sit directly over the footprints of the former North and South Towers.

• 2
  In Memoriam Gallery

  The In Memoriam Gallery is the museum's dedicated space honouring the victims of the attacks.

• 3
  Survivor Tree

  The Survivor Tree is a Callery pear that endured the 11 September 2001 attacks at the World Trade Center, emerging as a powerful symbol of resilience and renewal.

• 4
  Snøhetta Pavilion

  Snøhetta Pavilion is the only building constructed above ground at the 9/11 Memorial & Museum plaza.

• 5
  Last Column

  The Last Column is a steel beam, nearly 11 metres long, housed in Foundation Hall at the 9/11 Memorial & Museum in New York.

• 6
  Survivors' Steps

  The Survivors' Stairs is a granite and concrete staircase that served as an escape route for hundreds evacuated from 5 World Trade Center during the September 11, 2001 attacks.

• 7
  Trident Columns

  The Trident Columns are two seven-storey steel beams shaped like a trident, recovered from the exterior of the North Tower of the World Trade Center.