San Juan, Puerto Rico’s capital, is a city where cobblestone streets lead to centuries-old forts and pastel-colored buildings overlook the Atlantic. The district of Old San Juan is a UNESCO World Heritage Site, known for its Spanish colonial architecture and thick stone walls that once defended the city from pirates and naval attacks. The city hosts regular events such as La Campechada, which celebrates Puerto Rican art and literature with live performances and open-air exhibits.

Londonderry, often called Derry, is a city steeped in history and charm, uniquely surrounded by remarkably well-preserved 17th-century walls. In fact, it holds the title of being the only completely walled city in all of Ireland. Strolling along these ancient ramparts offers visitors not only a glimpse into the past but also breathtaking panoramic views of the winding River Foyle and the lively streets below.

Veracruz, Mexico, is a vibrant port city rich in history and culture. Founded in 1519 by Hernán Cortés, it is Mexico’s oldest city, and its historic center, with its colorful colonial buildings and bustling Zócalo, reflects its deep historical roots. Visitors can explore the impressive San Juan de Ulúa Fortress, a massive colonial-era fort that once served as a prison and a key military base.

Turku, Finland’s oldest city, is a captivating blend of rich history and contemporary charm. Established in the early 13th century, Turku is renowned for its medieval architecture, including the majestic Turku Castle.

Visitors to this breathtaking and romantic Cyclades archipelago will gaze at the whitewashed cubiform houses sitting cliffside and hovering over the water.