The architecture of St. Vincent reflects its West Indian culture, with many European influences. The streets of Kingstown (its capital) are lined with cobblestone and the town has the nickname "city of arches," inspired in part by St. Mary's Roman Catholic Cathedral, built in 1823. The cathedral sports towering spires, thick columns, and ornately decorated arches of Romanesque, Gothic, and Moorish design.

Another inspiration for the moniker are the various arches of other historic structures around town, including the Cobblestone Inn, formerly a sugar warehouse built in 1814 or before. The frontal facade bears a number of arches and cobblestone entryways. The architecture of St. George's Anglican Cathedral, built in 1820, is highlighted by original stained-glass windows

With more arches, Fort Charlotte, built in 1806, sits on Berkshire Hill outside of town. Sitting 600 feet above its surroundings, the fort is a prime example of military architecture of its time, and great views of the St. Vincent and surrounding islands can be had.

An example of landscape architecture can be seen on the west coast of St. Vincent at Botanical Gardens, founded in 1762 for the purpose of commercial breeding experimentation. A breadfruit tree, brought to Kingstown by the notorious Captain Bligh, still thrives there. Very reasonably priced guided tours are available.