LIBRARY OF CELSUS&lt;br /&gt;
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A technological wonder, with double walls to keep out the damp and moderate the extremes of temperature, it is also perhaps the most beautiful building at Ephesus, finely restored. To the right is the Gate of Augustus, a monumental arch leading to the Commercial Agora.&lt;br /&gt;
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The Library was built in A.D. 135, after the time of Paul and John.