They heated up all the old nails to straighten and reuse them, reused the old foundation stones, recreated the same lime mortar as originally used and had handmade windows made just as they would have been in the 18th century.
But, curiously, the Beatles' old rivals, the Rolling Stones , are a little more hip with the times.
The Stones are wily old businessmen: they were among the first to realise that fans would pay more for concert tickets.
They talk about "very old gold chains, diamonds and precious stones which cannot be valued in terms of money".
Pop in to watch artists rendering images, etching old limestone plates and sending their inked stones through massive, whirring antique presses to produce prints.
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"We could revisit all of those old wounds and heartaches, and throw some more stones at each other today if we choose to do so, " he said.
Standing in that courtyard, staring blankly at a pile of stones where my 23-year-old self had once posed for a photo, I was suddenly hit by the elasticity of time.
Last century old-timers might remember the strings sections in The Rolling Stones song, As Tears Go By.
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Remember the old adage--those who live in glass houses should not throw stones.
It will use 12, 000 tonnes of stones and other materials to reconstruct the 235-year-old canal embankment and will also install new drainage.
But last week the NFL said that anyone over 45 years old would not be allowed to join fans on the field while the Stones play.
It is certainly true that the Stones did spend a few days in early 1964 dashing out songs on an old two-track recorder in Regent Sounds Studio at 4 Denmark Street - and the rest is musical history.
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