Natural history museum night safari

I don't remember during the day really noticing  the building much while busy peering at the exhibits.
But at night... the building comes alive and craves your attention just as much as any dinosaur might.
Its quite atmospheric at night and Halloween themed safari was very entertaining.  Everyone attending (hmm about 150) really wanted to be there, the guides note the calm quite of the evening, after the days of loud echoing children. Plus their is something infectious that drives your fascination, when you are shown and told about things directly from a scientist or archivist who is passionate about there subject and sharing there knowledge with you.