Highest Library

JW Mariott Hotel; Shanghai, China; 2004.

The library on the 60th floor of the JW Marriott Hotel at Tomorrow Square in Shanghai, China, is situated at 230.9 m (757 ft 6 in) above street level. Membership is available to members of the public and the 103 shelves in the library contains an ever-expanding collection of Chinese and English books. The library measures 57 m² (614 ft²). To walk to the library from the lobby would entail climbing around 1,435 steps.

Source: Guinness World Records 2007

Highest Commercial Decelerator Descent

Macau Tower Sky Jump; Macau, Macau; August 17, 2005.

The highest commercial decelerator descent facility is Sky Jump at Macau Tower Convention and Entertainment Center. The descent starts from level 61 of the tower at a height of 233 m (764.4 ft) from ground level and each descent takes 17-20 seconds to complete. The inaugural jump was completed by A J Hackett (New Zealand) on August 17, 2005.

Source: Guinness World Records 2007

Highest Concrete Dam

Grande Dixence; River Dixence, Switzerland; 1961.

Grande Dixence, on the river Dixence in Switzerland, is the highest concrete dam in the world. It was built between 1953 and 1961 to a height of 285 m (935 ft), with a crest length of 700 m (2,297 ft), using 5,960,000 m³ (7,800,000 yd³, 210,400,000 ft³) of concrete.

Source: Guinness World Records 2007

Deepest Underwater Postbox

Heinz Piorkowski; Wakayama-Ken, Japan; April 23, 1999.

The world's deepest underwater postbox is located 10 metres (32.8 ft.) beneath the waters of Susami Bay, Japan.

Source: Guinness World Records 2007

Largest Offshore Gas Platform

Troll; Off Norway, North Sea; 1996.

The Troll Offshore Gas Platform, located off Norway in the North Sea, is the heaviest man made mobile object ever made, with a dry weight of the gravity base structure at 656,000 tonnes. Standing 369m tall, it was made from 245,000m3 of concrete, (the equivalent to 215,000 foundations for ordinary homes) and 100,000 tonnes of steel (approximately 15 Eiffel towers).

Owned by Shell Oil, the platform was constructed by Norwegian Contractors from July 1991 at a cost of NOK4,150million.

Source: Guinness World Records 2007

Smallest Purpose-Built Cinema in Operation

Cinema Dei Piccoli; Villa Borghese, Rome, Italy; 1934.

The Cinema dei Piccoli was built by Alfredo Annibali (Italy) in 1934 in the park of Villa Borghese, Rome, Italy and today covers an area of 71.52 m² (769.83 ft²). Originally called the Topolino Cinema (after Mickey Mouse), the cinema used a Path-Baby 9.5 mm movie projector, bed sheets for the screen and played 78's for background music. Restored in 1991, the cinema has 63 seats, a 5 x 2.5 m (16.4 x 8,2 ft) screen, stereo sound and air-conditioning.

Source: Guinness World Records 2007

Heaviest Building Moved Intact

Fu Gang Building; Guangxi Province, China; November 10, 2004.

The heaviest building moved intact is the Fu Gang Building at West Bank Road Wuzhou, in the Guangxi Province of China. It was successfully relocated by the Guangzhou Luban Corporation on November 10, 2004.The building weighs 15,140.4 metric tones (33.3 million lb) and is 34 m (111 ft) tall. The building was moved 35.62 metres horizontally and it took eleven days to complete the relocation.

Source: Guinness World Records 2007

Largest Ruby

Beijing Fugui Tianshi Jewelry Co. Ltd.; Beijing, China; December 2005.

The largest Ruby weighs 8184 g and measures 130 x 138 x 145 mm (5.11 x 5.43 x 5.70 in). It is owned by Beijing Fugui Tianshi Jewelry Co. Ltd. of Beijing, China.

Source: Guinness World Records 2007

Largest Dental Caps

Spike; Calgary Zoo, Alberta, Canada; July 4, 2002.

The world's largest dental caps measure 50 cm (19 in) long, 13 cm (5 in) in diameter and weigh 13 kg (28 lb) each. They were fixed onto a pair of cracked tusks belonging to Spike, a resident Asian elephant, at the Calgary Zoo, Alberta, Canada during a 3 hour 30 minute operation on July 4, 2002. The stainless steel caps were designed and manufactured by the Southern Alberta Institute of Technology with metal donated by Corus Steel and adhesive by 3M (all Canada).

Source: Guinness World Records 2007

Largest Cut Diamond

Ran Gorenstein; Belgium; June 2004.

The world's largest cut diamond is an unnamed Fancy Black, containing small red diamond crystals. It weighs 555.55 carats and was polished into 55 facets over several years and completed in June 2004. The repetitive use of the number five is culturally significant in the Islamic world, and was inspired by Ran Gorenstein (Belgium), who also commissioned this creation.

Source: Guinness World Records 2007

Largest Carved Sapphire

Richard Sipe, Sr.; North Carolina, USA; March 19, 2005.

The largest carved sapphire is a multi-coloured (blue, gold, grey) polished rock that weighs 80,500 carats (16.1 kg, 35.49 lb). The sapphire was displayed during the annual Unifour Gem & Mineral & Jewellery Show at the Hickory Metro Convention, North Carolina, USA on March 19, 2005.

Source: Guinness World Records 2007

Largest Plate Inserted in Human Skull

Tom Thompson; Decatur, Georgia, USA; April 30, 1971.

Tom Thompson (USA) had a titanium plate measuring 15 x 11 cm (5.9 x 4.33 in) inserted into the left side of his head by neurosurgeons at DeKalb General Hospital, Decatur, Georgia, USA on April 30, 1971. The surgery took place after he had been struck by a car and pronounced dead on arrival at the local hospital.

Source: Guinness World Records 2007

Largest Wireless Internet Provider

NTT DoCoMo; Japan; January 2006.

NTT DoCoMo (Japan) is the world's largest wireless internet provider, with 45,687,117 subscribers to their i-mode service as of January 2006.

Source: Guinness World Records 2007

Smallest Submarine

Pierre Poulin; Memphremagog Lake, Magog, Quebec, Canada; June 26, 2005.

The smallest submarine was made by Pierre Poulin (Canada) and has a displacement of 620 kg (1366.9 lbs). Its official dive was made in the Memphremagog Lake, in Magog, Quebec on June 26, 2005.

Source: Guinness World Records 2007

Largest Mobile/Cell Phone

Maxi Handy; Rotmain Centre, Bayreuth, Germany; June 7, 2004.

The world's largest functioning mobile phone is the Maxi Handy (Maxi Mobile). It measures 2.05 x 0.83 x 0.45 m (6.72 x 2.72 x 1.47 ft) and was installed at the Rotmain Centre, Bayreuth, Germany, on June 7, 2004 as part of the 'einfach mobil' infotour. The phone is made from wood, polyester and metal and features a colour TFT screen. It is fully functional and can send and receive SMS and MMS messages.

Source: Guinness World Records 2007

Tallest Rose Bush

Paul and Sharon Palumbo; San Diego, California, USA; December 5, 2005.

The tallest self-supported rose bush measured 4.03 m (13 ft 3 in) on December 5, 2005 and grows in the garden of Paul and Sharon Palumbo (USA) who live in San Diego, California, USA.

Source: Guinness World Records 2007

Largest Permanent Hedge Maze

Peace Maze; Castlewellan Forest Park, County Down, Northern Ireland; September 12, 2001.

The world's largest permanent hedge maze is the Peace Maze at Castlewellan Forest Park, Co. Down, Northern Ireland, which has a total area of 11,215 m² (2.771 acres), a total path length of 3.515 km (2.184 miles) and opened on September 12, 2001. The maze was designed by Beverley Lear (UK) and created by the Forest Service, Northern Ireland and members of the public.

Source: Guinness World Records 2007

Largest Jack O'Lantern

Scott Cully; Northern Cambria, Pennsylvania, USA; October 31, 2005.

The world's largest jack o'lantern was carved by Scott Cully (USA) from the world's largest pumpkin on October 31, 2005 in Northern Cambria, Pennsylvania, USA. The pumpkin was grown by Larry Checkon (USA) and weighed 666.32 kg (1,469 lb) at the Pennsylvania Giant Pumpkin Growers Association Weigh-off, on October 1, 2005.

Source: Guinness World Records 2007

Tallest Amaranthus

David Brenner; Iowa, USA; September 29, 2004.

The world's tallest amaranth plant (Amaranthus australis) measured 4.61 m (15.12 ft) on September 29, 2004 and was grown by David Brenner (USA) at Iowa State University, Iowa, USA.

Source: Guinness World Records 2007

Largest Tree Transplanted

Senna Tree Company; Los Angeles, California, USA; January 20, 1994.

The largest tree to be transplanted was an oak tree (Quercus lobata), aged between 180-220 years and measuring 17.67 m (58 ft) tall, 31.6 m (104 ft) wide (branch-span), weighing approximately 415.5 tonnes (916,000 lb) and with a trunk girth of 5 m (16 ft 2 in). "Old Glory" was moved 0.4 km (0.25 miles) by Senna Tree Company (USA) to a new park in Los Angeles, California, USA on January 20, 2004.

Source: Guinness World Records 2007