The Alamo is the most famous of the five colonial Spanish missions in San Antonio. The others are Mission San Jose, Mission San Juan, Mission Concepcion, and Mission Espada, all of which are designated World Heritage Sites.

Ironbridge, Shropshire, UK. Completed in 1779, the Iron Bridge is the world's first cast iron bridge, and spans the River Severn. The region is considered to be the cradle of the industrial revolution in England.