The video resource "The Crusades - Pilgrimage or Holy War?: Crash Course World History #15" is included in the "World History" course from the resources series of "Crash Course". Crash Course is a educational video series from John and Hank Green.

1838 CE - 1973 CE, Heiau of King Kamehemeha the Great - Located just across from Hulihe'e Palace, the Ahu'ena Heiau served as the personal temple of King Kamehameha the Great. The temple essentially functioned as the first capital of the Hawaiian Kingdom.

600 BCE - 1400 CE, Oasis City along the Silk Road - The cities that developed at Merv span the last 2,500 years, and together they form one of the most complex and well-preserved urban centres on the Silk Route of Central Asia. Throughout its occupation, Merv was the capital of vast empires, a trading center, and a military and administrative center. Its importance began to decline as the east-west land-based trade routes were by-passed by the growing sea trade, and eventually the city was sacked by the armies of Genghis Khan.

89 BCE - 79 CE, The Ancient Roman Seaside Villas of Stabiae - Ancient Stabiae was established in the first centuries BCE and CE in a panoramic position on the edge of Varano hill. Chosen by the aristocracy and members of the Roman Imperial, Ancient Stabiae was home to luxury villas of the Roman elite. After the eruption of the Vesuvius in 79 CE, the city was buried under fourteen meters of dry lapilli (cinder) as were the nearby sites of Pompeii and Herculaneum. However, unlike Pompeii and Herculaneum, Stabiae rose from the ashes and became famous for the healing properties of its thermal spring water.

2573 BCE - 29 BCE, The Ramesseum and Ancient Egyptian Capital - Ancient Thebes is home to the Ramesseum, one of the world's most important surviving examples of an ancient Egyptian temple. A project was designed to achieve an accurate sampling of the Ramesseum's ground plan for use in publication and conservation of the monument. Comprehensive laser scan coverage for the entire Ramesseum area was acquired along with detailed close-range 3D scans within the stone temple itself.

802 CE - 1431 CE, Hindu Temple Complex of the Khmer God Kings

400 BCE - 1319 CE, Church of the Redeemer - The Church of the Redeemer is one of the architectural masterpieces of the medieval city of Ani, located in the modern-day Turkish province of Kars and sitting atop a triangular plateau of land lined on its east by the Akhurian River and its west by the Aladja River. Ani's geographic location placed it directly along important east-west trade routes and in the center of regional politics for much of its history, with the Christian Byzantines to the west and the Islamic cultures to the east. This led to prosperity that materialized through some of the “greatest cultural expression[s] of Armenian architecture� (Cuneo 1984, 14). It became known beyond its own kingdom as the “city of the thousand and one churches,� due to its landscape dotted with churches, chapels, monasteries, and mausolea. Palaces and mansions, baths, inns, markets and shops, caravanserai, a citadel and ramparts, bridges, and aqueducts also contributed to Ani's distinguished reputation. At its peak under King Gagik I of the Armenian Bagratid dynasty (989-1020 CE), Ani rivaled Cairo, Baghdad, and Constantinople.

1722 CE - 1956 CE, Tracing the footsteps of slavery on a Danish sugar plantation

1900 BCE - 606 BCE, 2,500 years after the collapse of the Assyrian Empire, beginning in the 18th century and reaching a height in the 19th century, England led many archaeological excavations and studies throughout Iraq, rediscovering a long forgotten civilization. Through these studies, architectural layouts, deciphering of the diverse cuneiform scripts, and an understanding of this ancient empire came to light. Held at the British Museum, these vast objects continue to inspire viewers, reminding them of the power once held and adding to the greater understanding of our collective past.

2000 BCE - 150 BCE, A Monument of the "Cradle of Civilization" , The city of Babylon is one of the most important archaeological sites in the world. Located alongside the Euphrates River in modern-day Iraq, its monumental ruins recall the history of Mesopotamia, the ancient Near East, and the Biblical Old Testament, nestled in the region that is considered the cradle of civilization.

10th - 14th Century CE, Bagan is an ancient city located in the Mandalay Region of Myanmar. From the 9th to 13th centuries, the city was the capital of the Pagan Kingdom, the first kingdom that unified the regions that would later constitute modern Myanmar.

1932 CE, The Blue Wing Inn in Sonoma, California, was one of the first hotels built in the state north of San Francisco