A very interesting historic landmark that you can see next to St. Paul's Cathedral is the old Temple Bar built by Sir Christopher Wren, which was reassembled and relocated to the entrance at Paternoster Square next to St. Paul's in 2004.
Wren's Temple Bar is the only surviving gateway to The City, of which there were originally eight. King Charles II commissioned the structure shortly after the Great Fire of 1666. Wren then build the beautiful, marble arched passageway between 1669-1672.
Wr...