The Azure Window
The Azure Window of Malta might be well-known to Game of Thrones viewers. The wedding of Daenerys and Khal Drogo in the first season of Game of Thrones took place against the backdrop of the limestone arch that spanned out over the water. And since that place no longer exists, it's fortunate that HBO was able to capture the film when they could.
Erosion had been damaging the arch for many years. Fighting off the elements of wind, rain, and sea is a challenge. The arch, however, was unable to withstand a storm that battered Malta's shore in 2017 because of gale-force winds. There was nothing left behind as the entire building fell into the water.