Arco de Santa Catalina

The Arco de Santa Catalina is Antigua's most iconic monument, and an early-morning or late-afternoon photo opportunity framing Volcán Agua through its arch is an essential part of any visit to the town. It was built in 1694 to enable nuns from the Santa Catalina convent to cross the street without being seen; the clock tower is a 19th-century add-on.