The modern alternative? Given its location, the Dubai Miracle Garden is an obvious choice. Opened on Valentine’s Day in 2013, it contains over 45 million flowers covering a 72,000m² site and, as well as topiary-style displays, with blooms fashioned into the shapes of hearts, stars, igloos and pyramids. Others include Kew Gardens, the Keukenhof Gardens, the gardens at Versailles, and those at Villa d'Este in Tivoli, Rome.
Lighthouse of Alexandria
Built by the Ptolemaic Kingdom between 280BC and 247BC, the Lighthouse of Alexandria measured up to 137 metres in height, making it one of the tallest man-made structures in the world for centuries. It was damaged by three earthquakes between 956 and 1323, surviving as a ruin until 1480, when the last of its stones was used to build the Citadel of Qaitbay, which still stands on the site.