First glance: Catching sight of the Opera House from the Harbour Bridge - breathtaking; little ferries shuttling back and forth; sun reflecting off the tall silver buildings

Reminds me of: Brisbane but cooler... Brisbane's cooler, more exciting older sister

Atmosphere: hard to pin down. Sydney is a mix. Bohemian, but flashy. 

Last glance of Australia: tim tams; chemist; eating kangaroo; hangers go opposite; white cars; every building is named; surfing; froth; reckon; ankle booties; parasurfing; no dramas; sprouter; skirts with sweaters and boots; messy buns; tattoos; Aussie Rules; Minties; convertible train seats