In what part of the Maledives or in Papua New Guinea is this and what Dajak of Indonesia has constructed this ?
None actually. This is the Pfahlbaumuseum Unteruhldingen along the Bodensee in Uhldingen-Mühlhofen, Germany
The houses are reconstructed stilt houses from the Neolithic Stone and Bronze Age that once seem to have dotted the area.
I am not familiar with the subject and I stumbled upon the pictures by accident on wikipedia. So if anyone has more information about stone and bronze age architecture in this particular part of Europe then let's share it.