St Peter's Basilica
This immense building completed in 1626 after more than a century in the making (and arguably a religion in the splitting – but that is another story) is the largest Church ever built. How do you get more imposing than that? I'll tell you how, by having every square inch intricately decorated. Decked with grand paintings, searing marble pillars and gold gilt carvings. For all this, I did not find it an inspiring space. Quite different to the square outside, the scale and effect is diminished by an almost tacky display of wealth (and power). It lacks the serene simplicity that man at his best can capture. All in all too gaudy for my tastes.