The worn brick drum of the Pantheon. The dome springs from the row of corbels sticking out under the small doorways, and the upper storey merely acts as ballast to hold the dome together. Rome, Italy.<br>pantheon curve
<a rel="nofollow" class="external text" href="https://www.flickr.com/photos/93226994@N00">Anthony M.</a> from Rome, Italy
CC BY 2.0
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