Rounded arches and heavy pillars are characteristic features of which architectural style?

The architectural style that prominently features rounded arches and heavy pillars is Romanesque. This style, which flourished in Europe from the 9th to the 12th centuries, is characterized by its robust and solid construction, which is often seen in churches and cathedrals. The use of rounded arches is a significant aspect of Romanesque design, allowing for the creation of sturdy structures that could support thick walls with small windows.

Heavy pillars and columns are also typical in Romanesque architecture, providing the necessary support for the heavy stone roofs and vaults. This construction method contrasts with the later Gothic style, which evolved to feature pointed arches and ribbed vaults, allowing for greater height and more light through larger windows. While Baroque and Renaissance styles incorporated their unique elements, such as grandeur and symmetry, they do not exhibit the pronounced use of rounded arches and heavy pillars that define Romanesque architecture.