Santo Domingo
A catastrophic fire ruined this 17th-century church and Dominican monastery centuries ago. What's left at the entrance is the Arco Chato, or flat arch, a relatively precarious structure that served as proof that the country was not subject to earthquakes, tipping the scales in favor of Panama over Nicaragua for the construction of the transoceanic canal. The arch finally collapsed in 2003, without the help of an earthquake, but the city fathers considered it such an important landmark that they had it rebuilt.
