World Heritage letter "H"
- Historic Cairo(Egypt)
- Historical Complex of Split with the Palace of Diocletian(Croatia)
- Hal Saflieni Hypogeum(Malta)
- Historic Centre of Rome, the Properties of the Holy See in that City Enjoying Extraterritorial Rights and San Paolo Fuori le Mura(Holy See and Italy)
- Historic Centre of Warsaw(Poland)
- Historic Town of Ouro Preto(Brazil)
- Head-Smashed-In Buffalo Jump (Canada)
- Historical Monuments of Thatta(Pakistan)
- Historic Centre of Florence(Italy)
- Historic Centre of the Town of Olinda(Brazil)
- Historic Sanctuary of Machu Picchu(Peru)
- Historic Centre of Cordoba(Spain)
- Hatra(Iraq)
- Historic Areas of Istanbul(Turkey)
- Historic Centre of Salvador de Bahia(Brazil)
- Historic District of Old Québec(Canada)
- Historic Mosque City of Bagerhat(Bangladesh)
- Huascarán National Park(Peru)
- Hattusha: the Hittite Capital(Turkey)
- Historic Centre of Évora(Portugal)
- Historic City of Toledo(Spain)
- Hanseatic City of Lübeck(Germany)
- Hawaii Volcanoes National Park(United States of America)
- Historic Centre of Mexico City and Xochimilco(Mexico)
- Historic Centre of Oaxaca and Archaeological Site of Monte Albán(Mexico)
- Historic Centre of Puebla(Mexico)
- Henderson Island(Britain)
- Hierapolis-Pamukkale(Turkey)
- Historic Centre of Lima(Peru)
- Historic Town of Guanajuato and Adjacent Mines(Mexico)
- Historic Centre of Saint Petersburg and Related Groups of Monuments(Russian Federation)
- Historic Centre of San Gimignano(Italy)
- Historic Centre of Morelia(Mexico)
- Historic City of Ayutthaya(Thailand)
- Historic City of Sucre(Bolivia)
- Historic Town of Sukhothai and Associated Historic Towns(Thailand)
- Historic Centre of Český Krumlov(Czech Republic)
- Historic Centre of Prague(Czech Republic)
- Historic Centre of Telč(Czech Republic)
- Historic Monuments of Novgorod and Surroundings(Russian Federation)
- Huanglong Scenic and Historic Interest Area(China)
- Himeji-jo(Japan)
- Historic Centre of Bukhara(Uzbekistan)
- Historic Centre of Zacatecas(Mexico)
- Historic Town of Banská Štiavnica and the Technical Monuments in its Vicinity(Slovakia)
- Historic Town of Zabid(Yemen)
- Humayun's Tomb, Delhi(India)
- Ha Long Bay(Viet Nam)
- Historic Ensemble of the Potala Palace, Lhasa(China)
- Historic Monuments of Ancient Kyoto (Kyoto, Uji and Otsu Cities)(Japan)
- Historical Monuments of Mtskheta(Georgia)
- Haeinsa Temple Janggyeong Pangeon, the Depositories for the Tripitaka Koreana Woodblocks(Korea)
- Hanseatic Town of Visby(Sweden)
- Historic Centre of Avignon: Papal Palace, Episcopal Ensemble and Avignon Bridge (France)
- Historic Centre of Naples(Italy)
- Historic Centre of Santa Cruz de Mompox(Colombia)
- Historic Centre of Siena(Italy)
- Historic Quarter of the City of Colonia del Sacramento(Uruguay)
- Historic Villages of Shirakawa-go and Gokayama(Japan)
- Hiroshima Peace Memorial (Genbaku Dome)(Japan)
- Historic Centre of Oporto(Portugal)
- Historic Centre of the City of Pienza(Italy)
- Historic Centre of the City of Salzburg(Austria)
- Historic City of Meknes(Morocco)
- Historic Monuments Zone of Querétaro(Mexico)
- Historic Walled Town of Cuenca(Spain)
- Hallstatt-Dachstein Salzkammergut Cultural Landscape(Austria)
- Heard and McDonald Islands(Australia)
- Historic Area of Willemstad, Inner City and Harbour, Netherlands Antilles(Netherlands)
- Historic Centre (Old Town) of Tallinn(Estonia)
- Historic Centre of Riga(Latvia)
- Historic Centre of São Luís(Brazil)
- Historic City of Trogir(Croatia)
- Historic Fortified City of Carcassonne(France)
- Hospicio Cabañas, Guadalajara(Mexico)
- Hwaseong Fortress(Korea)
- Historic Centre of Urbino(Italy)
- Historic Monuments of Ancient Nara(Japan)
- Historic Monuments Zone of Tlacotalpan(Mexico)
- Historic Site of Lyons(France)
- Holašovice Historical Village Reservation(Czech Republic)
- Heart of Neolithic Orkney(Britain)
- Historic Centre (Chorá) with the Monastery of Saint John 'the Theologian' and the Cave of the Apocalypse on the Island of Pátmos(Greece)
- Historic Centre of Santa Ana de los Ríos de Cuenca(Ecuador)
- Historic Centre of Sighişoara(Romania)
- Historic Centre of the Town of Diamantina(Brazil)
- Historic Fortified Town of Campeche(Mexico)
- Historic Town of Vigan(Philippines)
- Hoi An Ancient Town(Viet Nam)
- Hortobágy National Park - the Puszta(Hungary)
- Historic and Architectural Complex of the Kazan Kremlin(Russian Federation)
- Historic Centre of Brugge(Belgium)
- Historic Centre of Shakhrisyabz(Uzbekistan)
- Historic Town of St George and Related Fortifications, Bermuda(Britain)
- Historical Centre of the City of Arequipa(Peru)
- Holy Trinity Column in Olomouc(Czech Republic)
- Historic Centre of Guimarães(Portugal)
- Historic Centre of the Town of Goiás(Brazil)
- Historic Centre of Vienna(Austria)
- Historic Centres of Stralsund and Wismar (Germany)
- Historic Inner City of Paramaribo (Suriname)
- Historic Quarter of the Seaport City of Valparaíso(Chile)
- Historic Centre of Macao (China)
- Historical Centre of the City of Yaroslavl (Russian Federation)
- Humberstone and Santa Laura Saltpeter Works (Chile)
- Harar Jugol, the Fortified Historic Town(Ethiopia)
- Historic Centre of Camagüey(Cuba)
- Historic Villages of Korea: Hahoe and Yangdong(Korea)
- Historic Monuments of Dengfeng, in the 'Centre of Heaven and Earth'(China)