12 of the most amazing man-made structures
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10. St Peters, VaticanYou can photograph as much as you like inside vast St Peters because all the art is in stone not sensitive pigment and fabric. Michelangelo contributed the 136.5 metre-high dome and the Pieta. Bernini designed the baroque canopy over St Peter's tomb. The grand basilica looks just as good from the outside, its enormous presences looming over St Peter’s Square.