Changi International Airport.

Wow.  Granted we saw it sparsely populated at midnight local time, but the place is enormous.  It has 4 terminals an the one we were in was cavernous.  This is a 4+ story water feature in one of the baggage carousels.

Tim will be in a lot of my photos.  I use him for scale.  This is simply an indoor garden in the baggage area Below the mammoth main concourse.  That large bush the the left of Tim is an orchid.  I'm not kidding.

This is that giant water feature.  There are several of them sitting inside the the baggage carousels.  Pictures do not do it justice.