Dioramas have been a major part of the displays there since it was established in 1941, but in recent years 1:1 dioramas have become a feature.
Anyway, pictures are worth a thousand words:
Pozieres 1916:

Dernacourt 1918:

P40E Kittyhawk:

Hawker Sea Fury:

Kapyong, Korea, 1950:

UH1B, Vietnam 1967:




Australian M113A1 1966-67:


Avro Lancaster with crew members in every position:

And I could go on, but I will probably blow this site's bandwidth!
Needless to say, if you're ever in Australia's capital, the Memorial is worth the look!