Ruins

Ruins (from Latin ruina 'a collapse') are the remains of a civilization's architecture. The term refers to formerly intact structures that have fallen into a state of partial or total disrepair over time due to a variety of factors, such as lack of maintenance, deliberate destruction by humans, or uncontrollable destruction by natural phenomena. The most common root causes that yield ruins in their wake are natural disasters, armed conflict, and population decline, with many structures becoming progressively derelict over time due to long-term weathering and scavenging.

There are famous ruins all over the world, with notable sites originating from ancient China, the Indus Valley, ancient Iran, ancient Israel and Judea, ancient Iraq, ancient Greece, ancient Egypt, ancient Yemen, Roman, ancient India, sites throughout the Mediterranean Basin, and Incan and Mayan sites in the Americas. Ruins are of great importance to historians, archaeologists and anthropologists, whether they were once individual fortifications, places of worship, ancient universities, houses and utility buildings, or entire villages, towns, and cities. Many ruins have become UNESCO World Heritage Sites in recent years, to identify and preserve them as areas of outstanding value to humanity.

Ancient cities were often highly militarized and had fortified defensive settlements. In times of war, they were the central focus of armed conflict and would be sacked and ruined in defeat. For example, Delhi, the capital of India, has been destroyed and ransacked seven to ten times and subsequently rebuilt. Every ruler decided to rebuild the city in their own way -- either overlapping the ruins or next to the ruins. Remnants of the prior cities can still be traced in the layout of modern-day Delhi.

Although less central to modern conflict, vast areas of 20th-century cities such as Warsaw, Dresden, Coventry, Stalingrad, Königsberg, and Berlin were left in ruins following World War II, and a number of major cities around the world – such as Beirut, Kabul, Sarajevo, Grozny, and Baghdad – have been partially or completely ruined in recent years as a result of more localized warfare.

Entire cities have also been ruined, and some occasionally lost completely, to natural disasters. The ancient Roman city of Pompeii in modern-day Italy was completely destroyed during a volcanic eruption in the 1st century CE, and its uncovered ruins are now preserved as a World Heritage Site. The city of Lisbon in Portugal was also completely destroyed in 1755 by a massive earthquake and tsunami; and the 1906 San Francisco earthquake in the United States had left the city in almost complete ruin.

Apart from acts of war, some important historic buildings have fallen victim to deliberate acts of destruction as a consequence of social, political and economic factors. The spoliation of public monuments in Rome was under way during the fourth century, when it was covered in protective legislation in the Theodosian Code and in new legislation of Majorian. The dismantling increased once popes were free of imperial restrictions. Marble was still being burned for agricultural lime in the Roman Campagna into the nineteenth century.

In Europe, many religious buildings suffered as a result of the politics of the day. In the 16th century, the English monarch Henry VIII set about confiscating the property of monastic institutions in a campaign which became known as the Dissolution of the Monasteries. Many abbeys and monasteries fell into ruin when their assets, including lead roofs, were stripped.

In the 20th century, a number of European historic buildings fell into ruin as a result of taxation policies, which required all structures with roofs to pay substantial property tax. The owners of these buildings, like Fetteresso Castle (now restored) and Slains Castle in Scotland, deliberately destroyed their roofs in protest at, and defiance of, the new taxes. Other decrees of government have had a more direct result, such as the case of Beverston Castle, in which the English parliament ordered significant destruction of the castle to prevent it being used by opposition Royalists. Ireland has encouraged the ruin of grand Georgian houses, seen as symbols of Britain.^{[citation needed]}