Catherine the Great

Paris, Kingdom of France, August 18, 1572. To avoid the outbreak of a religious war, the Catholic princess Marguerite de Valois, sister of the feeble King Charles IX, marries the Huguenot King Henry III of Navarre.

In anticipation of the most talked-about nuptials of the year, Savannah Guthrie and Hoda Kotb of NBC's "TODAY" take viewers to London to reveal exclusive insights on the wedding of Prince Harry and Meghan Markle.

This documentary charts Harry's journey through important turning points in his life - four other royal weddings and the death of his mother, Diana, Princess of Wales. Along the way it touches on the prince's active service as a soldier in Afghanistan and his international charity work.

In 8th-century China, the Emperor grieves the death of his wife. The Yang family wants to provide the Emperor with a consort so that they may consolidate their court influence. General An Lushan finds a distant relative working in their kitchen, whom they groom to present to the Emperor. The Emperor falls in love and she becomes the Princess Yang Kwei-fei. The Yangs are then appointed important ministers, though An Lushan is not given the court position he covets.

In the middle of a six-week tour of the Indian sub-continent between January and March 1961, the Queen and Prince Philip visited Pakistan and East Pakistan, now Bangladesh.

England, early 18th century. The close relationship between Queen Anne and Sarah Churchill is threatened by the arrival of Sarah's cousin, Abigail Hill, resulting in a bitter rivalry between the two cousins to be the Queen's favourite.

The ancients hid the secrets of their incredible knowledge of astronomy in their temples and palaces, built to align with the sun, on the same day, all over the world. Revealing our species' obsession with the sun, across thousands of years and every continent, this is architectural magic on a cosmic scale.

In a Spain consumed by ambition and power, the future of an empire depends of the mind state of a single woman.

An inside look into the lives of Meghan Markle and Prince Harry straight from experts, socialites and friends intimately connected with the House of Windsor.

Ancient Korea, 17th century. While the paranoid King Lee Jo of Joseon, vassal of the Qing dynasty, feels surrounded by conspirators and rebels, a dark evil emerges from the bowels of a merchant ship and the exiled Prince Lee Cheung returns to the royal court, ignoring that he will have to lead the few capable of defeating the ambitious humans and the bloody monsters who threaten to destroy the kingdom.

When Queen Elizabeth's reign is threatened by ruthless familial betrayal and Spain's invading army, she and her shrewd adviser must act to safeguard the lives of her people.

The story of the ascension to the throne and the early reign of Queen Elizabeth the First, the endless attempts by her council to marry her off, the Catholic hatred of her and her romance with Lord Robert Dudley.