The Congo River (in the past also known as the Zaire River) is a river in Africa, and is the deepest river in the world, with measured depths in excess of 220 m (720 ft). It is the third largest river in the world by volume of water discharged. Additionally, its overall length of 4,700 km (2,920 mi) makes it the ninth longest river.

The Congo gets its name from the ancient Kingdom of Kongo which inhabited the lands at the mouth of the river. The Democratic Republic of the Congo and the Republic of the Congo, both countries lying along the river's banks, are named after it. Between 1971 and 1997 the government of then-Zaire called it the Zaire River.

The Congo's drainage basin covers 4,014,500 square kilometres (1,550,000 sq mi). The Congo's discharge at its mouth ranges from 23,000 cubic metres per second (810,000 cu ft/s) to 75,000 cubic metres per second (2,600,000 cu ft/s), with an average of 41,000 cubic metres per second (1,400,000 cu ft/s).

The river and its tributaries flow through the Congo rainforest, the second largest rain forest area in the world, second only to the Amazon Rainforest in South America. The river also has the second-largest flow in the world, behind the Amazon; the third-largest drainage basin of any river, behind the Amazon and Río de la Plata rivers; and is one of the deepest rivers in the world, at depths greater than 220 m (720 ft). Because its drainage basin includes areas both North and South of the equator, its flow is stable, as there is always at least one part of the river experiencing a rainy season.

Alton Towers is a theme park and resort located in Staffordshire, England. It attracts around 2.7 million visitors per year making it the most visited theme park in the United Kingdom. Alton Towers is also the 9th most visited theme park in Europe. It is based north of the village of Alton in Staffordshire (approximately 16 miles (26 km) east of Stoke-on-Trent, and not to be confused with the town of Alton in Hampshire), in the grounds of Alton Towers, a semi-ruined gothic revival country house. The estate was a former seat of the Earls of Shrewsbury.

The resort includes the theme park as well as Alton Towers Hotel, Splash Landings Hotel, Waterpark, Spa, Extraordinary Golf and Conference Centre. It is the flagship attraction of Merlin Entertainments in the United Kingdom. Major attractions at Alton Towers include Nemesis, Oblivion, Air, Rita and Th13teen.

The park's promotional music is In the Hall of the Mountain King by Edvard Grieg.

An Iron Age fort was built on Bunbury Hill (c.1st-century BC) which is now occupied by the Alton Towers estate. In about 700 AD, the Saxon king Ceolred of Mercia built a fortress on the hill. But King Ine of Wessex besieged the site in 716 AD. The ensuing battle, which ended in stalemate, caused such a loss of life the place was called Slain Hollow (which later became the estate's oriental water garden).