Context: The abbey's two western towers were built between 1722 and 1745 by Nicholas Hawksmoor, constructed from Portland stone to an early example of a Gothic Revival design. Purbeck marble was used for the walls and the floors of Westminster Abbey, even though the various tombstones are made of different types of marble. Further rebuilding and restoration occurred in the 19th century under Sir George Gilbert Scott.

Question: When were the western towers built?
Answer: between 1722 and 1745

Question: Who built the western towers of the abbey?
Answer: Nicholas Hawksmoor

Question: What kind of marble was used for the walls and floors of the abbey?
Answer: Purbeck

Question: Under whom did the 19th century rebulding occur?
Answer: Sir George Gilbert Scott

Question: What were the two western towers built from?
Answer: Portland stone

Question: When were the eastern towers built?
Answer: Unanswerable

Question: Who built the eastern towers of the abbey?
Answer: Unanswerable

Question: What kind of marble was used for the ceilings of the abbey?
Answer: Unanswerable

Question: Under whom did the 18th century rebulding occur?
Answer: Unanswerable

Question: What were the three western towers built from?
Answer: Unanswerable