London Royal Observatory Greenwich Tickets

Explore momentous episodes in astronomy with these tickets to the Greenwich Observatory in London, where the world's time zones were first established and the initial meridian line of longitude 0° was drawn , an imaginary circumference dividing the planet into the eastern and western hemispheres.

You will have the opportunity to have your photo taken split between the two hemispheres of the Earth, with absolute precision, by placing one foot on the eastern and one on the western side of the line, located in the courtyard of the Observatory.

You will learn about the impressive history of the place created by the British astronomer John Flamsteed, who with his observation of the firmament contributed to the solution of one of the greatest problems of the time: determining the precise location.

From this observatory, the works of physicists and astronomers such as Edmund Halley, who published the first catalogue of stars thanks to his work with the Greenwich telescopes, materialised.

You'll enter Flamsteed's home to see the iconic Time Ball, a red ball that rests on the roof of the house and drops on time at 13:00 every day, symbolically marking the advance of time.

You'll see the iconic clocks of John Harrison, who also from this historic Greenwich enclave devised what is arguably the world's first maritime navigation GPS.

You'll have a downloadable digital audio guide so that, as well as viewing the objects and places that changed world history, you'll enjoy a learning tour of all the theories of these geniuses and their inventions.

You will be in front of the Great Equatorial Telescope, inside the great Dome, and you will see the Altazimuth pavilion, where a telescope was used to measure altitude at the time.