How does a place make it onto the UNESCO list?Imagine that there is an exceptional historic site in your town. Or that nearby there is an extraordinary landscape unlike anywhere else in the world.Is it enough to write to UNESCO - “We have a wonderful place. Put us on the list”?Definitely not. The journey from a local site to World Heritage Site status is long, demanding and often takes years. Along the way, extensive documentation must be prepared, the place must be compared with similar sites around the world, its exceptional value must be demonstrated, experts must assess it, and the World Heritage Committee must be convinced. And sometimes, despite years of preparation, the answer is: not yet.To conclude our UNESCO series, we are taking a look somewhere we have not explored before — behind the scenes of the entire process. Because the UNESCO designation on a postcard or information board is actually the final chapter of a very long story.Step 1. First, the site must be included on the Tentative ListEvery country that is a party to the World Heritage Convention creates its own Tentative List. This is an inventory of places that the country may wish to nominate for inscription on the World Heritage List in the future.a place on the Tentative List is not yet a UNESCO World Heritage Site. THIS does not mean that UNESCO has assessed it positively or that inscription is only a matter of time.It is more of an official indication that the place may have global significance and that further work is needed.UNESCO requires a site to be included on the national Tentative List before a formal nomination is submitted. In Poland, Gdynia was one such example for many years, before its modernist centre was inscribed on the World Heritage List in 2026.Step 2. Preliminary AssessmentBefore a country prepares a full nomination, a potential candidate undergoes a Preliminary Assessment. This is now a mandatory stage for places to be nominated.At this stage, experts analyse, among other things:- the place’s potential to demonstrate Outstanding Universal Value,- comparisons with similar sites around the world,- potential conservation issues,- the scope of the proposed nomination.This allows the country to find out earlier whether the candidacy has a solid foundation, before committing substantial resources to preparing a full nomination dossier.Step 3. It must be proved that the place matters beyond its own countryUNESCO uses the concept of:Outstanding Universal Value – exceptional significance for all humanityA place must have significance that extends beyond the borders of a single country. It must represent, in an exceptional way, human history, culture, the development of architecture, natural processes, the Earth’s evolution, biodiversity or other values recognised by UNESCO.There are also 10 official criteria for inscription, and a site must meet at least one of them. Some concern culture, others nature. They may relate, for example, to an exceptional achievement of human genius, remarkable testimony to an ancient civilisation, a groundbreaking type of architecture, exceptional natural beauty or a habitat important for the conservation of threatened species.Step 4. Comparisons with… the rest of the world are neededThis is one of the less obvious parts of the entire procedure. It is necessary to show how the place compares with similar historic sites, landscapes, archaeological sites or other places representing the same period or phenomenon. If, for example, an exceptional modernist city is being nominated, describing the city alone is not enough. It must be explained why this particular place contributes something to the List that is not already represented by other inscribed sites.This is where comparative analysis plays a crucial role, and it is often what determines whether the case is truly convincing.Step 5. Authenticity is about more than “original bricks”For cultural properties, UNESCO also examines authenticity. This concept is often oversimplified.Authenticity may relate to, among other things:- form and design,- materials,- workmanship,- function,- traditional use,- location,- setting,- traditions,- the atmosphere of the place,- intangible values.A site can therefore be authentic not only because its old materials have survived, but also because its functions, layout, traditions or patterns of use have endured.This is particularly important for places that have been rebuilt. It is precisely why UNESCO can recognise, for example, the historic centre of Warsaw, whose value is inseparably linked to its extraordinary post-war reconstruction.Step 6. Integrity – has the “whole story” survived?This concerns whether a site has retained all the elements needed to convey its exceptional value.For a natural landscape, this may mean an area large enough for natural processes to actually take place.For a city – an adequately preserved urban layout.For an archaeological site – its key components and spatial context.A single impressive building is therefore not enough if the rest of the place has been completely transformed and has consequently lost its historical meaning.Step 7. Boundaries matter enormouslyEvery UNESCO World Heritage Site must have precisely defined boundaries. These are not drawn “roughly”; they must include the elements that constitute its Outstanding Universal Value.For natural sites, these may include, for example:- habitats,- areas where particular species occur,- natural processes,- geological formations.For a historic site or city – specific buildings, historic spaces and the elements necessary to preserve its value.Sometimes, a dispute over the boundaries of a nomination can become one of the most difficult parts of the entire procedure.On UNESCO maps, we will often see another area: the buffer zoneThis is the area surrounding the actual site, and its purpose is to provide additional protection. If someone builds an enormous skyscraper right next door, it may not physically damage the historic site itself, but it can completely change its skyline.A buffer zone can help protect against precisely these kinds of threats.Important! the buffer zone is not automatically part of the UNESCO World Heritage Site itself.It is intended to support and protect the site, and it is not always necessary if effective protection is provided by other legal or spatial measures.Step 8. The nomination dossier is preparedThe country prepares a detailed Nomination File.The documentation includes, among other things:- a precise description of the place,- maps,- boundaries,- history,- justification of Outstanding Universal Value,- comparative analysis,- UNESCO criteria,- the state of conservation,- the legal protection system,- management arrangements,- threats,- photographic documentation,- a monitoring plan.A full dossier can be an extensive study prepared by experts from many different fields. UNESCO publishes nomination documentation, which further increases the transparency of the process.Step 9. Independent experts enter the pictureOnce a nomination has been submitted, it is not simply assessed by the UNESCO office. Specialised advisory bodies operate within the World Heritage system.The most important of these are:- International Council on Monuments and Sites (specialises primarily in cultural heritage)- International Union for Conservation of Nature (assesses natural nominations)- International Centre for the Study of the Preservation and Restoration of Cultural Property (specialises in issues relating to heritage conservation and protection, and supports the implementation of the Convention)Experts analyse the documentation, may carry out on-site missions and prepare a recommendation for the Committee, but they still do not make the final decision.Step 10. 21 countries decide on inscriptionThe final say belongs to the World Heritage Committee, which consists of 21 States Parties to the Convention.The decision is made during its session.✅ inscribe – add the site to the List,↩️ refer – return the nomination for specific additional information,⏳ defer – postpone the decision when more substantial revision or reassessment of the nomination is needed,❌ not inscribe – do not add the site to the List.If the decision is to defer, the problem is usually more fundamental. A new analysis, a different argument, changes to the boundaries, additional research or a substantial reworking of the entire candidacy may be needed.once a place makes it onto the list… the work does not endThis is probably the biggest myth surrounding UNESCO. Inscription does not mean the task is complete. In reality, that is when long-term responsibility begins.The country must continue to:- protect the place,- manage it,- monitor its condition,- respond to threats,- inform UNESCO about significant changes.UNESCO uses, among other mechanisms, Reactive Monitoring, a procedure activated when there are specific threats to a site. Current Committee documents contain detailed state-of-conservation reports and requests for updates for subsequent sessions.The second mechanism is Periodic Reporting.The next reporting cycle began in July 2026 and will run until 2030. UNESCO has shortened the cycle to identify changes and trends in World Heritage conservation more quickly.Under the new schedule, two regions report each year. This therefore represents an ongoing commitment to protecting the place.The World Heritage List is not entirely static.A site’s boundaries, name or scope can be modified, and an existing inscription can be extended.This is why some sites have several dates associated with them. The first marks the original inscription, while later dates may indicate extensions or significant modifications.UNESCO status can also be lost - we have already mentioned this, so we will not recount all the examples again.In the context of today’s article, one thing is worth saying: if a place loses the values for which it was inscribed, and protection proves ineffective, the Committee may take increasingly serious action.First come reports, recommendations and monitoring. In very serious cases, a site may be placed on the List of World Heritage in Danger; in an extreme situation, it may be removed from the main List.UNESCO status is therefore more than a mark of prestige - above all, it is a commitment.Behind that single designation, there are often:- many years of research,- dozens of experts,- maps and analyses,- comparisons with sites around the world,- a protection system,- management plans,- a decision by 21 countries- a commitment to preserving the place for future generations.From a local place to the heritage of all humanityPerhaps this is what best sums up our entire UNESCO series. We began with specific places, then travelled around the world and explored UNESCO’s lesser-known programmes.At the end, we can see that a very detailed system underpins it all.And you? If you could put forward one place in Poland for a future UNESCO nomination, what would it be?