The Qutb Minar complex in south Delhi comprises the world’s tallest brick minaret (72.5 metres, built from 1193 CE), the first mosque in India after the Islamic conquest (built partly from 27 repurposed temple columns), and a 1,600-year-old iron pillar that has not rusted — explained by its high phosphorus content forming a stable protective surface layer. The Alai Darwaza (1311) introduced true arches and domes to India. UNESCO inscribed the site in 1993.

Nalanda is 67 km from Bodh Gaya, Sarnath 212 km. The nearest World Heritage sites, and what ICOMOS and the temple committee say about the Mahabodhi Temple.

The nearest World Heritage sites to the Konark Sun Temple are the two Sundarbans (370 and 388 km) and Santiniketan (453 km), plus who built the sun chariot and what fell.

Pattadakal is a UNESCO World Heritage Site in Karnataka containing 10 temples built under the Early Chalukya dynasty between the 7th and 9th centuries CE, unique in India for presenting North Indian Nagara and South Indian Dravidian architectural styles side by side in a single complex. The Virupaksha Temple of 742 CE, commissioned by Queen Lokamahadevi and built partly by craftsmen from the defeated Pallava kingdom, is the largest structure on site and a direct precursor of the Deccan temple traditions that culminated at Hampi eight centuries later.

Hampi is a UNESCO World Heritage Site comprising the ruined capital of the Vijayanagara Empire in Karnataka, which at its 16th-century peak held an estimated 500,000 residents — larger than Rome at the same period. Sacked and burned for six months after military defeat in 1565, the 25-square-kilometre site preserves more than 1,600 monuments including the Vittala Temple’s musical pillars and stone chariot, and the still-active Virupaksha Temple with its 50-metre gopuram.

Gebel Barkal is a 98-metre sandstone mountain in northern Sudan that served as the sacred centre of the Napatan kingdom — the civilisation whose kings conquered all of Egypt in the 8th century BCE and built more pyramids than any Egyptian dynasty. The UNESCO-inscribed site includes the Temple of Amun, royal pyramid fields at Nuri (containing Taharqa’s 65-metre pyramid), and the earliest Kushite cemetery at El-Kurru.

Oman’s approximately 3,000 active aflaj — gravity-fed underground irrigation channels — have watered desert settlements without pumps for at least 1,500 years. Five of these systems received UNESCO World Heritage inscription in 2006, each governed by communal water auctions that fund maintenance through time-share bidding measured by shadow-clock. The nearest separate UNESCO site, the Bronze Age City of Bat, lies 50 km north of Nizwa.

The Garrison Border Town of Elvas in the Portuguese Alentejo holds a UNESCO World Heritage inscription (2012) as the location of the world’s largest intact bulwarked fortification system. Built in stages from 1641 to 1792 using the trace italienne bastion method, Elvas withstood seven sieges during the Restoration War (1640-1668) and was never taken. The 843-arch Amoreira Aqueduct (1498-1622), 7.5 km long, kept the garrison supplied with water; the town also contains an extraordinary octagonal 16th-century church with a complete Baroque azulejo tile interior.

Ajanta is a UNESCO World Heritage Site of 29 Buddhist rock-cut caves in Maharashtra containing the finest surviving corpus of ancient Indian mural painting, executed in mineral pigments between roughly 200 BCE and 480 CE. Abandoned around 480 CE and overgrown for approximately 1,300 years, the caves were encountered in 1819 by a British officer hunting tigers, and the paintings — including the celebrated Bodhisattva Padmapani of Cave 1 — remain unmatched as evidence of early Indian pictorial art.

The Laurisilva of Madeira is a UNESCO World Heritage natural site (1999) protecting approximately 15,000 hectares of ancient laurel forest — roughly 90% of all surviving laurissilva on the planet. This relict ecosystem, a remnant of subtropical forests that covered southern Europe during the Pliocene epoch, is accessible via Madeira’s celebrated levada walking paths, which follow centuries-old irrigation channels through the moss-draped canopy. The Trocaz Pigeon, endemic to Madeira, disperses the seeds of the dominant Til trees and is the forest’s ecologically indispensable animal.