Temple Bar, City of London
Temple Bar was originally located in the road outside the Royal Courts of Justice to the West of the City of London. It was the last surviving gate into the City when removed in 1878 to make way for increasing traffic.
It was moved to Theobalds Park in Hertfordshire and, many years later, was moved a second time and rebuilt in the current location next to St Paul’s Cathedral.
The former gatehouse is now the Worshipful Company of Architects livery hall and adjoins their main office in Paternoster Lodge. It is, in fact, the smallest livery hall in the City of London.
There is a detailed history in the Wikipedia article.
North Side of Temple Bar
The North side of Temple Bar that, in its original location, faced the City of London
360 Virtual Tours
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Interior of the room above the arch, now used as the Worshipful Company of Architect’s Livery Hall, the smallest in the City of London.
North side
Under the arch
South side