Ernest Hemingway donated his former home of two decades to "the people of Cuba" after moving away, and it remains largely undisturbed since the 1960s. Although one cannot technically come into the house, there are plenty of spots to peek in through the windows, as well as explore the premises containing a tiny cemetery of Hemingway's pet dogs and his fabled boat Pilar, docked in what once was a tennis court.

Havana's vibrant Old Town is where the Cuban capital of today took root in the mid-16th century. UNESCO World Heritage Site status has brought about comprehensive restoration work to many of the city's crumbling architectural treasures, built in styles as wide-ranging as Cuban baroque and art nouveau (Plaza Vieja at the heart of Old Havana is where the eclecticism is most evident and best admired from a sidewalk cafe). The Old Town's two main pedestrian thoroughfares – Obispo and Mercaderes – are lined with government-run shops and attractive paladars.

This 11th-century cathedral, now being a museum, is adorned by stunning mosaics and impressive frescoes. Together with the Kyiv Pechersk Lavra, this one is listed on the UNESCO World Heritage List.

The Museum of Modern Greek Art (MGA) is a major cultural institution spread across three buildings in the city's Northern part, showcasing the creative genius of 20th-century Greek artists. You'll encounter a rich array of paintings, sculptures, and drawings from luminaries like Maleas, Bouzianis, Kontoglou, Theofilos, Vassiliou, and Hadzikyriakos-Gikas. Each building offers a unique glimpse into the world of modern Greek art, making it a must-see for any art aficionado.