Taipei Astronomical Museum has many exhibitions and is the Taipei City Observatory. The IMAX Theater 3D Theater and Telescope and Observatory Area are the main attraction.
It's right next to National Taiwan Science Education Center and further down to Taipei Children's Amusement Park. Will be great place to visit for family and friends' outing on holiday.
The cache is outside the museum in a park where a lot of interesting devices in place for experimental interactions.