Homolka, Natural monument in Bečov nad Teplou, Czech Republic.

Homolka is a natural monument on the summit of Kupa hill (695 m) south of Bečov nad Teplou. Its core is a basanite volcanic neck exposed by weathering, with irregular basalt columns and slab jointing at the top. The surrounding granite of the Karlovy Vary pluton contains feldspar crystals twinned as Karlovy Vary twins.

The natural monument received protected status in 1972 to safeguard its geological features and ecological value. This designation recognized the importance of the rock formations for understanding the geological history of the region.

The hill's name, Homolka, refers to its hump-like shape, and the summit is reached by a narrow path overgrown with rosehip and blackthorn. The site lies on the slope of Kupa hill (695 m) above the Teplá River valley, and its care is entrusted to the Slavkovský les Protected Landscape Area administration.

The summit is reached only by a narrow, trodden path overgrown with rosehip and blackthorn, so sturdy footwear helps. From the top the view opens onto the wooded valley of the Teplá River. The site lies on the summit of Kupa hill (695 m), less than a kilometre west of Chodov and south of Bečov nad Teplou.

The basalt neck was exposed not by quarrying but by weathering of the softer surrounding granite, so the columns stand free. In the granite below, feldspar crystals form twinned growths called Karlovy Vary twins.