Village of the Regional Nature Park of the Quercy Limestone Plateaus, Assier offers visitors its 16th-century Renaissance buildings, which are the castle and the church. This latter is especially rich in carved figures as one can see on the outside frieze of the building, which represents war scenes. The funeral chapel of the church boasts Galiot de Genouillac's tomb, master of the artillery of François I and founder of the castle and the church of the village. Partly destroyed in the 18th century, the Renaissance château flanked by towers nevertheless kept its prestigious appearance, with its interior and exterior decoration typical of this period.
Every summer in July, the village of Assier hosts a music festival named "Assier dans tous ses états", an event dedicated to jazz, improvisation and theatre.