Even in a city as renowned for its ancient buildings as Edinburgh, everything is not always what it seems.
While there is an abundance of historic architecture in the capital, there are one or two structures that have been trying to pull the wool over their eyes - one such building is Adam House at 5 and 6 Chambers Street.
The lecture theatre, which has been used as as venue for the Edinburgh Fringe on numerous occasions, doesn't look out of place amongst the many other fine buildings on the street.
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At first glance, you'd think the handsome edifice dated from the 18th century - but all is not what it seems, for Adam House was only completed in 1954.
Yep, believe it or not folks, the building, which is owned by the University of Edinburgh, dates from the post-war era - and we don't meet after the Battle of Waterloo.
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Even the very name Adam House is a nod to the past. It commemorates Adam Square, which was one of three 18th century residential squares razed during the Victorian era to make way for Chambers Street.
Adam Square was demolished as part of the 1867 City Improvement Act which set about improving living conditions in and around Edinburgh's historic Old Town. Scores of buildings, many dating back to the medieval era were swept away during this time.
So, we hear you ask, what stood on the site prior to Adam House, given that the latter wasn't built until the 1950s?
For more than 60 years, a small theatre, Operetta House, occupied the space. The venue was operated by H.E. Moss, whose company would become synonymous with theatres up and down the UK.
Later becoming a cinema, Operetta House closed at the outbreak of the Second World War and would never reopen. It was demolished in 1951 and the site purchased by the university.
Adam House was designed by the esteemed architect and leading modernist William H. Kininmonth, who opted, rather fittingly, to emulate the style of Robert Adam's Old College situated on the opposite side of Chambers Street.
To the untrained eye, Adam House looks every bit as historic as the Old College, except that was built 170 years earlier.
Architecturally speaking, the B-listed beauty is as deceitful as they come, but we love it to bits.
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