What makes a place World Heritage? A plain guide

“UNESCO World Heritage Site” appears on signs, brochures and booking sites around the world. It is a real, carefully defined status — and earning it takes years of work. Here is what it means in plain language.

A treaty from 1972

The World Heritage List comes from the World Heritage Convention, adopted by UNESCO in 1972. Countries that sign it agree to protect the heritage sites on their territory and to help protect heritage elsewhere. Almost every country in the world has signed. The list now includes more than 1,200 places.

Outstanding universal value

To be listed, a site must have what the Convention calls outstanding universal value: importance so great that it matters to all of humanity, not just to one country. A site has to meet at least one of ten criteria. Criteria i to vi are cultural — for example, a masterpiece of human creative genius or an exceptional testimony to a vanished civilisation. Criteria vii to x are natural — for example, superlative natural beauty or important habitats for threatened species.

A site must also show integrity and, for cultural sites, authenticity, and the country must prove that it has laws and a management plan to protect it.

How a site gets listed

A country first places the site on its Tentative List. It then prepares a detailed nomination file, which is evaluated by expert advisory bodies: ICOMOS for cultural sites and IUCN for natural sites. Finally the World Heritage Committee, made up of 21 member countries, decides at its annual meeting.

Listing is not a prize for being old or famous — it is a promise to look after a place for everyone.

In Danger, and delisting

Sites threatened by conflict, development, neglect or natural disaster can be put on the List of World Heritage in Danger, which draws attention and support. In rare cases a site that has lost its value is removed altogether, as happened to Germany’s Dresden Elbe Valley in 2009 and to Liverpool’s waterfront in 2021.

Pakistan’s World Heritage Sites

Pakistan has six sites on the list, all cultural: the archaeological ruins at Mohenjo-daro; Taxila; the Buddhist ruins of Takht-i-Bahi and the neighbouring city remains at Sahr-i-Bahlol; the historical monuments at Makli, Thatta; Rohtas Fort; and the Fort and Shalimar Gardens in Lahore.

Why it matters

Listing brings international attention, can unlock expert help and funding, and often boosts tourism. That can be a mixed blessing: more visitors bring income but also wear and pressure. See our full list of UNESCO archaeological sites on the atlas, and our tips on visiting them responsibly.