The Monastery of Sao Vicente de Fora is a 17th-century monastery that features impressive polychromatic marble and the tomb of several Portuguese kings.
The Monastery of Sao Vicente de Fora is one of the ornate white buildings that you can see clearly from the ramparts of Saint George Castle.
The present monastery dates back to the 17th century, although the original church on the site goes much further, to the 12th century.
There are two main highlights. One is the exceptionally ornate sacristy, which features many different colored marbles (known as polychrome marble) to create ornately decorated walls that rise to an equally ornate painted ceiling.
The other popular highlight is the Braganza Pantheon, which is where the Portuguese kings of the House of Braganza are entombed.
You can access the rooftop for some wonderful views out of the city and Tagus River.
You can find the latest U.S. Department of State travel advisories and information for Portugal (such as entry visa requirements and vaccination requirements) here.
The CDC makes country-specific recommendations for vaccinations and health for travelers. You can find their latest information for Portugal here.