Extensions on Tentative List

Diocletian Aqueduct, Splitska (port), Srkip (fortified settlement)

Le massif forestier de Fontainebleau

Insular area and bay of Colonia del Sacramento

Réserve Spéciale d'Anjanaharibe-Sud

Mapungubwe Cultural Landscape (Trans-boundary Listing)-Botswana

The Great Rift Valley - The Maasai Mara - The site should be listed as across boarder site as the United Republic of Tanzania has taken the first initiative

Temples, Gardens and Archaeological Sites Representing the Buddhist Pure Land (extension)

Late Medieval Bastioned Fortifications in Greece (2014)

Evolution of Temple Architecture - Aihole-Badami- Pattadakal

Luther memorials in Saxony-Anhalt, Saxony, Bavaria and Thuringia (2015)

Poland, Bosnia-Herzegovina, Czechia, Italy, Montenegro, North Macedonia, Serbia, Slovakia and Switzerland

Classical Karst

The royal necropolis of the Thracian city of Seuthopolis – a serial site, extension of the Kazanlak Thracian tomb (2016)

Cité de Carcassonne et ses châteaux sentinelles de montagne (2017)

Rio Platano Biosphere Reserve (2019) - "At the national level, however, the nominated area has since been substantially enlarged"

Le paysage culturel de Diy Gid Biy des Monts Mandara (extension du Paysage culturel de Sukur) - Cameroon

As Simien Mountains National Park (technically a major boundary modification) - to extend the protected territory significantly.

The Coast of the Bohai Gulf and the Yellow Sea of China (2017, 2021)

Jaén Cathedral

Waldsiedlung Zehlendorf

Paysage culturel Bassari (Guinea) is adjacent and has the same values, although it is not explicitly described as an extension.

Sacred mount of Mehr, Royal mausoleums in Naghsh-e Rajab and the city of Estakhr

Maputo National Park (Mozambique)

Historic Georgetown

Getbol, Korean Tidal Flats (Extension) with 3 further areas

Cueva de las Manos and associated sites of the Pinturas river basin

Halud Vihara and Jaggadala Vihara

Ranigat: In 2002, Pakistan received US$ 30,000 from the World Heritage Fund for the preparatory assistance for the nomination of the archaeological remains at Ranigat as an extension of Taxila World Heritage site.

Tropical Rainforest Heritage of Sumatra – Significant Boundary Modification

Waters and seabed of Fiordland (Te Moana O Atawhenua)

Wassu Stone Circles Quarry Site (Gambia)

Silk Roads Sites in Kyrgyzstan (2010), only partly inscribed

Gwaii Haanas

Serra da Capivara National Park and Permanent Preservation Areas : extension into a mixed site, to cover the Caatinga shrubland

Extension of the World Heritage Site "Historic Centre of Prague" with the important Monuments in its Vicinity: The Müller Villa, The Bfevnov Abbey, The Hvezda Hunting Lodge With lts Game-park

Church of Ayios Mamas, Louvaras; Church of Ayios Sozomenos, Galata; Church of Panayia Chrysokourdaliotissa, Kourdali (PENDING - WITHDRAWN 2006)

Mount Zion

Namibia's Okavango Delta

Jinggangshan--North Wuyishan (Extension of Mount Wuyi)

Kangra and Matheran Railways (PENDING - WITHDRAWN 2010)

Poplar Forest, Bedford County and Virginia State Capitol, Richmond

The Laponian Area - Tysfjord, the fjord of Hellemobotn and Rago (Norway)

St. Cyril's Church, St. Andrew's Church (PENDING - DEFERRED 2010, 2012)

Jesuit Mission of San Cosme y San Damián (Paraguay)

King Lujian's Mausoleum

The old villages of Hollókö and Rimetea and their surroundings (Romania)

The proposed additions are located within the same broad geographic range as the existing World Heritage Area with a northern extension to include the Bunya Mountains National Park. A total of 689 364 hectares is proposed for addition.

8 separate extensions to "Frontiers of the Roman Empire" are on the tentative list: Austria, Croatia, Hungary, the Netherlands, Germany, Serbia, Slovakia, Tunisia

Great Sandy World Heritage Area

Ancient Greek Theatres (16/01/2014) - possibly a double entry

There are extensions to the Danube Limes on the Tentative Lists of Bulgaria, Croatia, Hungary, Romania and Serbia.

Late Medieval Bastioned Fortifications in Greece (2014)

Church of San Salvador de Valdediós

Monastery of St. Amenaprkich (New Julfa Vank) (01/02/2019)

Les villes antiques de la Narbonnaise et leur territoire: Nimes, Arles, Glanum, aqueducs, via Domitia

Archaeological sites of Mehrgarh, Rehman Dheri and Harappa (PENDING - INCOMPLETE 2008)

Bhutan's "Royal Manas NP"

Paysage culturel des monts Nimba and Mount Nimba Strict Reserve (extension) - Liberia