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.

From grand castles to resplendent cathedrals, Tallinn’s Old Town neighborhood, a UNESCO World Heritage Site, is the perfect place to begin exploring. Enter through Viru Väravad, or Viru Gate, the former fortress whose remaining two towers beckon you into the heart of the city.

Dominica, known as the “Nature Island of the Caribbean,” is a haven for eco-tourists and adventure seekers. Nestled between the French islands of Guadeloupe and Martinique, this lush island boasts a remarkable landscape of volcanic mountains, dense rainforests, and stunning waterfalls. Dominica’s most iconic natural wonder is the Boiling Lake, the second-largest hot spring in the world.

Munnar, located in the Western Ghats of Kerala, India, sits at around 1,600 meters above sea level and was once the summer resort of British colonial officers. Today, it’s known for its vast tea plantations, many of which date back to the 19th century. Visitors can walk through estates like Kolukkumalai, the highest tea plantation in the world, where traditional methods are still used to process leaves by hand.

Oxford is best known for its world-famous university, but the city offers much more than historic college halls and ivory towers. Its skyline, shaped by spires and domes, hints at centuries of intellectual life. The University of Oxford dates back to at least the 12th century and includes iconic buildings like the Bodleian Library, one of the oldest libraries in Europe, and the Radcliffe Camera, a circular reading room that looks more like a cathedral than a place for quiet study.