Third biggest Roman ruins in Europe and, off course the biggest in Bulgaria. The therms were built in 2nd century AD and Romans enjoyed there by bathing in freezing cold water, tepid water or hot water. Only a small complex comparing to original is still preserved.

The Cathedral of the Assumption of the Virgin, built in the 19th century, houses a finely carved iconostasis and bishop's throne as well as some interesting murals and stained glass.

Dolphinarium offers you a show you will not forget. You will get to know the dolphins closely and watch them play, jump out of the water, sing, ... Admission: 17 leva, they have three shows/day