Great Pyramid of Giza

The , sometimes known as the Great Pyramid of Cheops or of Khufu, was a pyramid in Giza, Egypt, once considered one of the Seven Wonders of the World. It housed the tomb of the Pharaoh Khufu. (COMIC: Minus Seven Wonders) It was the only one of the Seven Wonders of the Ancient World which remained intact by the early 21st century. The Great Pyramid stood at 140 metres tall and took 20 years to build. The Twelfth Doctor noted that it also took a lot of slaves. (PROSE: A History of Humankind)

History
Scaroth insisted that he had "quite a lot to do with the building of the pyramids", through the Doctor considered Scaroth "rather full of himself" and believed it may have been "wild exaggeration". (PROSE: A History of Humankind)

At the time of its erection, its surroundings were the set of an engagement between the First Doctor, the Monk and the Daleks. At the "west angle of the Great Pyramid", Steve and Sara, hostages of the Daleks, were released in exchange for the taranium core. (TV: The Daleks' Master Plan)

When the Tenth Doctor brought Martha Jones to see it in 2375 BC, it was stolen by Pholonius Ginn, who intended on selling it to the highest bidder on G-Bay. It was finally returned — with the other six Wonders — by Trongus Squum, at the Doctor's request. (COMIC: Minus Seven Wonders)

According to a different account, the pyramid was not constructed until 2000 BC, to mark the place that a Dalek Spacecraft had crashed. (COMIC: Strange to Tell... According to the Daleks)

The Sixth Doctor and Evelyn Smythe visited the Great Pyramid looking for signs of a Dalek in Earth's history. (PROSE: The Eighth Wonder of the World)

The Fifth Doctor and Erimem saw the Great Pyramid while approaching Giza. (AUDIO: The Eye of the Scorpion)

Napoléon Bonaparte visited the Great Pyramid in 1798. (PROSE: The Sands of Time)

In 1966, the Daleks, after intervening in the 1966 World Cup Final, visited the Great Pyramid during their invasion of Earth. A family of four time tourists were present to see them destroy the Great Sphinx nearby but were shocked to notice their temporary retreat. (COMIC: Liberation of the Daleks)

On 5 November 1967, the Revolution Man carved his symbol on the face of the Great Pyramid. (PROSE: Revolution Man)

Alternate timelines
It was the place where the timey-wimey distress beacon was built by River Song in an alternate timeline where all of history occurred at once. The timeline came into being because she refused to kill the Eleventh Doctor. The King's Chamber was where they had Madame Kovarian tied up. River was married to the Doctor on the top of the pyramid and she kissed him — actually the Teselecta — reverting the timeline. (TV: The Wedding of River Song)