A possible concise summary is:
The video is a vlog of three siblings who travel to Vienna, Austria, to celebrate the New Year. They show the city's attractions, such as the opera house, the cathedral, the Mozart statue, and the street party. They also try a local ritual of melting lead figures and interpreting their shapes. They have fun dancing, eating, and wearing hats. They end the video by wishing their viewers a happy 2018.
Here are the key facts extracted from the text:
1. The text is a transcript of a video by the Polynesians, a group of three siblings who make vlogs about their travels and adventures.
2. The video is about their visit to Vienna, Austria, during the New Year's Eve of 2018.
3. They show various attractions and activities in Vienna, such as the KSTAR nuclear fusion reactor, the Mozart statue, the cathedral, the horse carriage ride, the greenhouse, the opera house, and the street party.
4. They also do a ritual of melting lead figures and interpreting their shapes as predictions for the new year.
5. They lose and find each other several times during the video.
6. They express their love and excitement for the city and its culture.