Delos, an uninhabited 5 km² island in the Greek Cyclades, preserves both the ancient sanctuary of Apollo — mythological birthplace of the god — and the most complete Hellenistic commercial city surviving in the Mediterranean, abandoned after twin massacres in 88 and 69 BCE left its mosaic-floored residential quarter intact beneath two thousand years of silence.

Hiraizumi’s 12th-century Buddhist temples and Pure Land gardens represent the brief, brilliant civilisation built by the Northern Fujiwara clan in the remote Tōhoku region — preserved today at Chūson-ji’s golden Konjikidō hall and the Heian garden of Mōtsu-ji, and made famous in Japanese literature by Matsuo Bashō’s haiku at Takadachi hill.

The Nanda Devi and Valley of Flowers National Parks, a UNESCO site in the Indian Himalaya, combine the permanently closed wilderness sanctuary around Nanda Devi (7,816 m) with the seasonally accessible Valley of Flowers — a high-altitude meadow holding over 500 alpine plant species and open to trekkers only between June and October.

The Ennedi Massif in northeastern Chad, a UNESCO mixed site inscribed in 2016, preserves Carboniferous sandstone eroded into vast gorge systems and natural arches, over 400 rock art sites documenting the transition from the Green Sahara to desert across 7,000 years, and the Guelta d’Archei — where the last relict Saharan crocodiles coexist with daily camel gatherings in an isolated spring deep in the desert.

The Rock Islands Southern Lagoon, a UNESCO mixed site in the Republic of Palau, encompasses 445 limestone islands with mushroom-shaped profiles, over 385 coral species, and the extraordinary Jellyfish Lake — where millions of golden jellyfish have evolved to lose their sting. The lagoon also preserves ancient Palauan cultural heritage and dozens of Second World War wrecks in its clear waters.

The White Monuments of Vladimir and Suzdal, UNESCO-inscribed in 1992, preserve the 12th–13th century limestone architecture of the Vladimir-Suzdal principality — the dominant Russian state before the Mongol invasion. Two hours by express train from Moscow, the ensemble includes the Cathedral of the Assumption (prototype for Moscow’s Kremlin cathedral), the ornament-encrusted Cathedral of St Dmitry, and the solitary Church of the Intercession on the Nerl, widely regarded as the most perfect work of medieval Russian architecture.

Elephanta Caves on Gharapuri Island in Mumbai Harbour preserve some of the finest Shaiva rock-cut sculpture in India, carved between the fifth and eighth centuries CE. The monumental Trimurti panel — a 6.6-metre three-headed image of Shiva — survived Portuguese occupation and remains one of the supreme achievements of early medieval Indian art. The caves are reached by a 65-minute ferry from the Gateway of India.

The Ruins of Loropéni in southwestern Burkina Faso are the country’s only UNESCO World Heritage Site and the best-preserved of some 100 laterite stone enclosures built across the Lobi region between 1000 and 1400 CE, likely by communities controlling the trans-Saharan gold trade. The site is currently difficult to access safely due to the ongoing Sahelian security crisis.

The Matobo Hills, 35 kilometres south of Bulawayo, Zimbabwe, hold over 3,000 San rock art sites spanning 13,000 years, extraordinary concentrations of white rhino, and the graves of both Ndebele king Mzilikazi and Cecil Rhodes. UNESCO-inscribed in 2003 as a mixed cultural and natural site, the landscape embodies the layered and often contested character of southern African heritage.