Castries is one of the most modern looking cities of the Eastern Caribbean. The reason behind this is an unfortunate one; the city saw devastating destruction from major wars and two destructive fires in 1948 and 1963. Even so, some historical buildings still stand proudly and add a flavor of the city's past onto its new look.

The Central Library, located as suggested, in the center of the city, was once called the Carniege Library as it was built by Andrew Carniege, the American millionaire. The library was completed in 1925 and somehow escaped the major wrath of the fires. The library was slightly damaged but was restored back to its original architecture and stands proudly today.

The Derek Walcott Square near the library is lined with houses representing French architecture and are known as "chattels." The small wooden houses are charming and a signature design of theirs is that the windows all have wooden shutters. Many of them are painted in a various bright colors to aid them to represent their island address.

The Cathedral of Immaculate Conception is another noteworthy building in Castries. This church, completed in 1957's outdoor facade isn't much to impress, but the interior makes up for that and is filled with work by native artist, Alwin St. Omer.

The Vigie Lighthouse on the northern side of Castries' harbor  is open to the public and the view from its top will provide tourists with a great panorama and opportunity for pictures of the city of Castries.