St Paul's Anglican Cathedral occupies the corner of Flinders and Swanston Streets opposite Federation Square and Flinders Street Station, giving it one of the most prominent positions of any building in Australia. The Gothic Revival building was designed by William Butterfield, the Victorian-era architect responsible for Keble College at Oxford, though he never visited Australia — the design was executed entirely from London based on his drawings and detailed instructions.
Construction stretched from 1880 to 1891 for the nave, with the spires not completed until 1932. The interior is relatively sombre by the standards of English Gothic Revival churches, with good stained glass and Butterfield's characteristic polychrome stonework. The cathedral is open to visitors during the day and entry is free. It is a useful reference point in the CBD — if you are at Flinders and Swanston, you are at the centre of Melbourne.