A tall and shorter human figures walk through the gigantic storage house, to find a car behind the wall in a white room.

Mystery Object Challenge

Name: Mystery Object Challenge
Start: 2024-01-22T00:30:00.000Z
End: 2025-06-29T06:00:00.000Z
Location: Castle Hill

Ended 29 Jun 2025

11.30am or 2.30pm until 29 June

Free

FreeStandard

Powerhouse Castle Hill

On Dharug Land

Powerhouse Castle Hill

2 Green Rd, Castle Hill NSW 2154

Plan your visit

Accessibility at Powerhouse Castle Hill

Getting to Powerhouse Castle Hill

Group Visits

Come and test your detective skills by guessing the identity and purpose of quirky, historical objects.

The Mystery Object Challenge is a free, family-friendly activity where participants learn about one of more than half a million objects held in the Powerhouse Collection.

Drop-in at either 11.30am or 2.30pm every Saturday and Sunday to join the challenge.