Ponte Vella is a medieval footbridge built on Roman foundations in Ourense. At one time, it was considered to be the biggest bridge in all of Spain.
The original bridge across the Minho River was built during the first century rule of Emperor Augustus though other sources state that it was built during the Trajan period. A mention is made of this bridge in the will of Doña Urraca, where it is said that it was repaired with funds provided by Ferdinand III. From the Middle Ages, it has provided access to the city of Ourense for trade and pilgrimage.
The structure was rebuilt in 1230 by Bishop Lorenzo on Roman foundations (original piers), and repaired in 1449 by Bishop Pedro de Silva. It then measured 402 m long, with an arch span of 48 m. However, the main arch collapsed in 1499 and the bridge was rebuilt in 1679 to a length of 370 metres with seven arched spans, the main span measuring 43 metres.
References:The Broch of Clickimin is a large and well preserved, though somewhat restored broch near Lerwick. Originally built on an island in Clickimin Loch (now increased in size by silting and drainage), it was approached by a stone causeway. The water-level in the loch was reduced in 1874, leaving the broch high and dry. The broch is situated within a walled enclosure and, unusually for brochs, features a large 'blockhouse' between the opening in the enclosure and the broch itself. Another unusual feature is a stone slab featuring sculptured footprints, located in the causeway which approached the site. Situated across the loch is the Clickimin Leisure Centre.