Many of its fine sandstone buildings date back to the feather boom period, including the old Boys High School (1907) - with its 27,5m high clock tower - now known as the CP Nel Museum, and the Le Roux Dorpshuis, a fine Edwardian art nouveau-style feather palace with a circular tower and intricate iron railings.  Other historic buildings include the Gothic-style Dutch Reformed Church (1879), Pinehurst and the Prince Vincent and Company building of 1914.  Also of interest is Arbeidsgenot, the house of the well-known Afrikaans lawyer, writer, poet and politician, CJ Langenhoven.  A longtime campaigner for the Afrikaans language, Langenhoven wrote the words of Die Stem (the sole national anthem of South Africa until 1994) and was also the author of some 40 books.  In March/April each year, Oudtshoorn is host to the popular Klein Karoo National Arts Festival, which attracts upwards of 100 000 people for a week-long celebration of Afrikaans artisitc expression.