Petrova Niva

Petrova Niva is a historic site in the Strandzha Mountains near Stoilovo. In 1903 it hosted a congress of the Adrianople Revolutionary District of the Internal Macedonian-Adrianople Revolutionary Organisation, where the general plan for the regional uprising during the Ilinden–Preobrazhenie Uprising was discussed. A monument was built on the site in 1958, and the Church of St Petka was erected in 2003 for the uprising's centenary. A museum also operates in the area, with displays of photographs, weapons and documents relating to the Bulgarian liberation struggles in Thrace and Macedonia and to the Ilinden–Preobrazhenie Uprising. The bones of the Bulgarian revolutionary and voivode Georgi Kondolov are buried in the monument.

The site is included among the Hundred National Tourist Sites as number eight and is open throughout the year. Petrova Niva combines history, remembrance and cultural heritage and has its own Bulgarian Tourist Union stamp.