Alberobello in southern Italy’s Puglia region captures the imagination with its distinctive trulli houses. These structures were built using a dry-stone technique passed down over centuries, without mortar or cement, and their unique form comes from layer upon layer of limestone nestled from nearby fields. Alberobello’s trulli are so remarkable that in 1996 the historic center was inscribed as a UNESCO World Heritage Site, where more than 1,600 of these buildings still stand.

Whether exploring ancient ruins or strolling through its modern city center, visitors will find plenty to discover in Nijmegen, the oldest city in the Netherlands.

Glencoe lies in the western Highlands of Scotland, where a long, steep-sided valley cuts through mountains shaped by ancient volcanic activity and glaciation.

Cat Ba, the largest island in Vietnam’s Halong Bay, is a striking mix of rugged limestone cliffs, hidden coves, and vibrant jungle. Long home to fishing communities, the island has retained its local charm while also becoming a gateway to the natural wonders of the surrounding bay.

Aizuwakamatsu in Fukushima Prefecture is a city where samurai history is tangible. Once a stronghold of the Aizu domain, it played a pivotal role in the late Edo period and the Boshin War.