The Natural History Museum in London is home to a cross section of the trunk of a Giant Sequoia tree showing nearly 1800 years worth of growth rings. I remember visiting it as a child and it still looked just as magnificent when I saw it again yesterday.
Whilst there I visited the Wildlife Photographer of the Year Exhibition. The winner of the Botanical Realms category was Michael Nichols from the USA who photographed a living specimen in all its glory. This tree is 3,200 years old, 75 metres high and the trunk has an 8 metre diameter. The final image is made up of 126 images taken by 3 cameras which were set up in a complicated pulley system in a nearby tree.
This is the bottom section of the image.
This is the whole image. I spotted three people in the picture.