Vigo is Spain ’s highest-ranking city in the latest Happy City Index, compiled by the Institute for Quality of Life.

"It's like a city frozen in time," said archaeologist Pedro Guillermo Ramón Celis of Canada's McGill University.

Coimbra is one of the oldest cities in Portugal, with a deep connection to the country’s history. The city met the first Moors arriving in the Iberian Peninsula and became the birthplace of six ...