Most countries put their best-preserved medieval buildings in the capital. Serbia's are scattered through quiet countryside, and two of the most important sit within forty minutes of Kraljevo — a town most visitors have never heard of.

If you're in the area for treatment or a deal and have a spare day, this is the one thing worth making the effort for.

Žiča: the red one

Founded in the early 1200s, Žiča was the seat of the Serbian Archbishopric — effectively the founding church of an independent Serbian religious identity, at the moment that identity was being established.

The first thing anyone notices is the colour. The walls are deep red, and against green hills and a grey sky it is genuinely startling. Photographs undersell it; the shade shifts considerably with the light, and late afternoon is the time to be there.

It is a short drive from Kraljevo — close enough to combine with something else in the same day, or to see on the way to Studenica.

Studenica: the important one

Roughly forty minutes from Kraljevo, Studenica is a UNESCO World Heritage Site, founded by Stefan Nemanja in the late 12th century. Nemanja was the founder of the dynasty that ran medieval Serbia; this was his monastery, and he is buried there.

Two things make it exceptional.

The first is the white marble. Most Byzantine-tradition churches of the period are brick and stone. Studenica's main church is faced in marble, which gives it a completely different character — closer to Romanesque Italy than to what you'd expect this far east. That mix, western form and eastern function, is exactly what makes it art-historically significant.

The second is the frescoes. Medieval wall painting of this quality and this age surviving in situ is rare anywhere in Europe. You are looking at images painted eight hundred years ago, in the building they were painted for, still doing the job they were painted to do. People who know Byzantine art travel specifically for this.

Give it longer than you think. Half an hour is enough to see it and not nearly enough to look at it. The frescoes reward standing still. If you rush Studenica you may as well not go.

Practical things

Why bother, if you're not religious?

Because they're not primarily religious experiences for a visitor — they're historical ones. These buildings were standing before most European cathedrals were started. They survived the Ottoman centuries. They are the physical evidence of a small country's continuity, and they sit in countryside with a river running past and almost nobody around.

And there is the pure novelty of it: an eight-hundred-year-old UNESCO site that you can visit on a Tuesday afternoon without a ticket queue, a crowd, or a single selfie stick.

The short version: Žiča for the red walls and the history, Studenica for the marble and the frescoes. Both near Kraljevo, both doable in one day, both better if you don't hurry.