1830 CE - 1976 CE, Johnson and Melrose House of the American South

1964 CE, The 1964-65 New York World's Fair (NYWF), with over 51 million attendees, was the last of the ‘great' Fairs held in the United States. For the price of a $2.00 admissions ticket, a Fairgoer could glimpse into the nation's history, discover art from around the world, view advances in science and technology and peer into the future, all in one compact locale. Many of the technologies we enjoy today, or the foundations that made them possible, were showcased at the 1964-65 NYWF.

3000 BCE - 1874 CE, A Site of Significance for First Nations and Geology. Okotoks Erratic, situated 7 km west of Okotoks, Alberta, Canada, is a supreme example of a glacial erratic. Commonly known as " Big Rock" , this quartzite boulder is the world's largest known glacial erratic at 16,500 metric tons.

1907 CE - 1958 CE, The Peel Island Lazaret is a former institution for people with leprosy, located within Teerk Roo Ra (Peel Island) National Park in Moreton Bay on the eastern seaboard of Australia, near Brisbane, the capital city of Queensland. It is owned by the Quandamooka Yoolloobarrabee people and is jointly managed with the Queensland Parks and Wildlife Service.

900 BCE - 146 BCE, The amphitheaters found around the Mediterranean are one of the most important legacies left from ancient civilizations. Their architecture, acoustics, and quality of structure give clue to their social importance and craftsmanship. As important as they were historically, they are equally as important now to the living legacy from tourists to local performers. However, it is also this continued interest that has become a contributing factor to the deterioration of these sites. ATHENA Project

1776 CE - 1994 CE, Spanish Fort in the Heart of San Francisco

3200 BCE - 1600 CE, 4,000 Years of Human Occupation- Qal'at al-Bahrain was built in the 14th century, and served as a Portuguese fort until the 16th century. The fort is located atop a 17.5 hectare, artificial hill that has been built up over more than 4,000 years of continuous, human occupation at this location. The site is the former capital of the Dilmun civilization, and one of the most important archaeological sites of the Bahrain Archipelago. Excavation over the past 50 years has revealed residential, public, commercial, religious and military military structures, that testify to the importance of the site over the centuries.

9000 BCE - 2000 BCE, Rock Art Sites Representing the Rich Archaeology of Somaliland

90 BCE - 258 CE, Excavated Remains of the Roman Army in Germany - The Roman Baths in Weienburg - also referred to as the Great Thermae - are one of the most remarkable relics of the Roman camp and its garrison, the vicus Biriciana, whose duty was to protect the northern border of the province Rhaetia (Upper Germanic Rhaetian Limes). The baths that served the garrison are located at the edge of the present day city of Weißenburg in Bavaria. They are among the very few such archaeological remains that are preserved on German soil.

1879 CE - 1879 CE, Rorke's Drift Battlefield - The Battle of Rorke's Drift, fought on 22 January 1879, was one of the most famous battles of the Anglo-Zulu War. Fought between the Victorian army, under Lt. John Chard, and the Zulu army, under Chief Cetshwayo, the Battle of Rorke's Drift was preceded by the British invasion of Zululand led by commander-in-chief Lord Chelmsford. Though the Zulu forces surprised the British in strength and number at the Battle of Isandlwana, the British defense of the Rorke's Drift mission post held.

1446 CE - 1592 CE, Rosslyn Chapel, formally known as the Collegiate Chapel of St Matthew, is a 15th-century chapel located at the village of Roslin, Midlothian, Scotland.