Gamboa, Panama, was originally built to house employees of the Panama canal. The small town's main attractions are its proximity to significant tracts of relatively undisturbed rainforest, and Pipeline Road, considered one of the best bird watching sites in Central America.

Portugal offers a layered experience shaped by maritime history, deep-rooted traditions, and a coastline that stretches for nearly 1,800 kilometers. In Lisbon, the streets of Alfama wind uphill toward São Jorge Castle, where views of red-tiled rooftops and the Tagus River reveal how the city was rebuilt after the 1755 earthquake. Trams still clatter through narrow streets, and fado music, often performed in candlelit taverns, tells stories of longing and the sea.

Biarritz, located on the Basque coast of southwestern France, is a glamorous seaside city renowned for its picturesque beaches and rich history. Once a modest fishing village, Biarritz evolved into a luxurious resort destination favored by European royalty in the 19th century.

Vatican City is a sovereign city-state enclosed within Rome and the smallest independent state in the world by territory. Its compact area contains major religious, artistic, and architectural landmarks associated with the Catholic Church. At its center is St Peter’s Square, framed by the sweeping colonnade designed by Gian Lorenzo Bernini and leading to St Peter’s Basilica, built over the traditional site of the tomb of the Apostle Peter.

Opatija, located on Croatia’s Kvarner Bay, has been drawing visitors since the 19th century, when Austro-Hungarian aristocrats built grand villas along its Adriatic shoreline. Today, many of those same buildings still stand with some restored as luxury hotels and others preserved as cultural landmarks. The town’s most recognizable structure, Villa Angiolina, opened in 1844 and marked the start of Opatija’s rise as a fashionable seaside resort.