Havanna's Old Town, Cuba (82/418)

Founded in 1519 by the Spanish, Havana had become, by the 17th century, a prime centre for naval construction in the Caribbean. Although it is today a sprawling metropolis of two million inhabitants, its old centre retains an interesting mix of baroque and neo-classical monuments, and a homogenous ensemble of civilian houses with arcades, balconies, wrought-iron gates and interior courtyards.