You then get into various early metal working, bronze age and eventually iron age cultures. Strangely, they haven't found much from the middle to late bronze age, so there is a bit of a gap where they don't have much information about who was living in this part of the world and what they were like.
In short order, you get to the Roman exhibits, which is the bulk of the museum. Niassus was a major Roman center and much has been found from the area and from the excavations of Mediana.

This soldier, guarding all the good stuff, is wearing a type of armor known as Lorica segmentata. Bits and pieces of it have been found from all over, but it wasn't until a bunch was found in a hoard at Corbridge along Hadrian's Wall that modern historians figured out how it all went together to work as a system of armor.

I saw that set of armor last year when visiting Corbridge on a day trip out from Hexham.

https://en.wikipedia.org/wiki/Lorica_segmentata

There is a model of Mediana and a bust of Constantine in the corner. The docent was nice enough to let me step over the red ropes and take a closer look at both.
Here are the baths, two banqueting halls and main reception halls of Constantine's villa.
Here is the man himself up close.

They've got a large collection of coins on display going back to Greek times, but also covering the Roman, Byzantine and Medieval Serbian periods.

Here is a coin of Galerius, whose palace Felix Romuliana I checked of earlier.

Also, a coin of Constantine. Think the coins match up to the busts?

They've got a bronze bust of an early Byzantine empress, as well. It is thought to be of either Euphemia (wife of Justin I) or Theodora (wife of Justinian).
Many Roman empresses had coins minted in their own right and ruled in various capacities while their husbands were away or even after they died.
Here are some of the "Big Name" emperors you may have heard of for famous and infamous reasons.

Anyways, enough coins. Lets get to other cool stuff.

Here is a statue of Hygeia in porphyry. She is the goddess from whom we get the word hygiene.

This is a section of bronze railing found at Mediana which appears to have enclosed a shrine to Hygiea in the main hall. The sections of railing are separated by what are called Herm sculptures of Lune (see the moon crescent?) and Asclepius, another major figure of the healing pantheon, from whom we get the near universal medical symbol of a serpent wrapped around a staff.

https://en.wikipedia.org/wiki/Rod_of_Asclepius

Herm statues have a square section topped with a head or head and torso and for male figures, you get genitals at the appropriate place jutting out from the square column. That's the case here with Ascelpius. These ones also have feet at the bottom.
Above the bronze railing, they have some sections of frescoes from the villa that gave them some hints at what one of the rooms may have looked like. This wasn't even a particularly fancy room in the villa, but it was near to the the sections used for imperial dining and receptions.
This is another Asclepius. He's holding an orb in his hand. The Galerius statue from Felix Romuliana was also doing the orb in hand thing.
Who is this? Not sure. Looks like she has a miniature calf in one arm and what the heck is dangling from the other. Looks like it has a tiny hand. A baby?
This is a small Chi Rho mosaic from one of the early Christian churches at Mediana.
Fancy jewelry and intaglios.
These are called Fibula(e), a type of brooch used to attach togas at up by your shoulder.
Some lamps of various types. The ones at the synagogue exhibit were generally much fancier, but it is possible that all the nice ones were stolen from Mediana where the Huns got to it.
Tiny little gladiator figure.
Misc stuff.
This relief apparently represents the threefold nature of Hecate.

The wikipedia article has a much better example of a similar depiction.

https://en.wikipedia.org/wiki/Hecate

Some intaglios, dice, game markers and fancy glassware. Some of this stuff is basically impossible to examine properly in a big glass display case and needs to be in a horizontal case, preferably with magnification aids.
Some more fancy statues.
More fancy jewelry. Wonder what the well dress man and woman about the villa looked like when dressed up for a night of dining with the Emperor of all the Romans.
I think these are fancy door handles.
I think this is the fanciest frying pan I've ever seen.
These were larger cameo type pieces that look to have been made from maybe rock crystal.
The Romans had some very fancy and fragile glassware.
This is one of the most interesting objects in the whole collection, imo. It is a military diploma. They were issued to soldiers who completed their service to the empire and conferred the right to marry and have civil rights. The original was kept in Rome and the soldier would carry around a copy which had been attested to by various prominent citizens. These diploma were often split up into sections so that children of the soldier could show that they were citizens after their parent's death.
Note, the Roman empire did more to honor and reward the service of their soldiers than does the United State of America today. Foreigners who serve in the US army are often deported after completion of their service. Additionally, some nations, like France, allow soldiers to become citizens after a certain amount of time in uniform. France, also confers immediate citizenship on any soldier wounded in the course of their duties.

I've been to a bunch of Roman sites over the years and this is only the second diploma I've seen

This diploma was awarded to a soldier named Caius Aurelius Valens in the year 222 AD, over 1800 years ago. It would likely have been this person's most prized possession.

Anyways, that is all I've got time for tonight. Hope you enjoyed this little look at Roman material culture (and sometimes Imperial Roman, at that).