St. Mary's Cathedral in Sydney

St Mary's is one of the world's largest English-style Gothic churches.
The original 1833 structure was destroyed by a fire in 1865 and
new construction was started the same year. The twin spires were
only completed in 2000 and they were part of the original plans.
The terrazzo floor (not pictured) in the crypt is based on the Story of
Creation and the Book of Kells; it took 15 years to complete.