Buzludzha monument

The Monument House of the Bulgarian Communist Party ) was built on Buzludzha Peak in central Bulgaria by the Bulgarian communist government. It commemorated the events of 1891, when a group of socialists led by Dimitar Blagoev assembled secretly in the area to form an organized socialist movement that led to the founding of the Bulgarian Social Democratic Party, a forerunner of the Bulgarian Communist Party.

Construction of the monument began on 23 January 1974 under architect Georgi Stoilov, a former mayor of Sofia and co-founder of the Union of Architects in Bulgaria. Trinitrotoluene was used to level the peak into a stable foundation, reducing the mountain's height from 1,441 metres to 1,432 metres . More than 15,000 cubic metres of rock were removed in the process. The monument was built at a cost of 14,186,000 leva, which by today's rates is roughly equivalent to US$35 million.

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