The tallest structure of Lincoln Logs was 3.77 m (12 ft 4 in) tall and was constructed by the city of Lincoln (USA) in Lincoln, Nebraska, USA, on 13 April 2013.

Residents of Bethel, Maine, USA, and surrounding towns, built a snow woman measuring 37.21 m (122 ft 1 in) tall, over a period of one month, completing her on 26 February 2008.

The tallest sandcastle measured 11.53 m (37 ft 10 in) and was created by Ed Jarrett at Winding Trails Recreation Area in Farmington, Connecticut, USA, on 20 May 2011. 1.6 million pounds (800 tn) of sand and water was used in the construction of the sandcastle. 1,400 individuals volunteered for 3,000 hours for this project. The event began on 1 April and finished on 20 May 2011.

The tallest rose bush is 5.66 m (18 ft 7 in), grown by Robert Bendel (USA) at his home in Morristown, New Jersey, USA, and measured on 12 October 2009. The red rose bush was measured by Arthur Rothenstein, a volunteer with the Master Gardeners of Essex Co New Jersey and a part-time gardening consultant for the Great Swamp Greenhouses in Gillette, New Jersey, USA.

The tallest male under the age of 18 years is Brenden Adams (USA, b. 20 September, 1995), whose height is 225.1 cm (7 ft 4.6 in). Related Records Largest Hands

The tallest sweetcorn (maize) plant measures 10.74 m (35 ft 3 inches) and was grown by Jason Karl of Allegany, NY, USA. It was measured on 22 December 2011. The Maize was measured in the horizontal position from the bottom of the botanical shoot to the top of the tassel.

Sem Abrahams (USA) rode a 35 m (114.8 ft) tall unicycle for a distance of 8.5 m (28 ft) at the Silverdome in Pontiac, Michigan, USA, on 29 January 2004.

Identical twins Ann and Claire Recht (USA, b. 9 February 1988), were measured both horizontally and vertically, three times during 10 January 2007 in Oregon, USA and found to have an average overall height of 2.01 m (6 ft 7 in) and 2.01 m (6 ft 7 in) respectively.

The tallest tree currently growing is Hyperion, which measured 115.54 m (379.1 ft) in September 2006. This coast redwood (Sequoia sempervirens) was discovered by Chris Atkins and Michael Taylor (both USA) in the Redwood National Park, California, USA on 25 August 2006. The initial measurement read a height of 115.24 m (378.1 ft), however it was measured again by Dr Steve Sillett, Mike Taylor, Chris Atkins and Robert van Pelt by climbing it and dropping a tapeline. Remarkably, Hyperion is situated on a hillside (not Continue reading →

The tallest bluebonnet flower (Lupinus harvardii) measured 164.5 cm (64.75 in) tall on 27 March 2005. The flower was discovered by Margaret Lipscomb and Arthur Bullis Cash (both USA) in Big Bend National Park, Texas, USA.