St. George’s, the capital of Grenada, is a picturesque harbor town nestled within the rim of an extinct volcano. Its horseshoe-shaped Carenage, lined with pastel-colored colonial buildings, offers a postcard-perfect introduction to the island.

Fátima, a small town in central Portugal, has become one of the most significant pilgrimage sites in the world, drawing millions of visitors annually. The Sanctuary of Fátima, a sprawling complex of religious buildings and monuments, stands at the heart of the town. Pilgrims from all over the globe come to light candles, attend mass, and walk the sacred paths in reverence.

On coastal Iceland, the globe's northernmost capital, Reykjavík, invites visitors to discover its unique charms. Iceland is rife with natural wonders: geysers, geothermic spas, waterfalls and the spectacular Northern Lights. Reykjavik, dating back to 870 AD, offers world-class museums, restaurants, shopping and nightlife.

Southeast Spain's seaport of Cartagena is a large naval base on the Mediterranean coast. The city was founded in 220 B.C. and boasts Roman ruins, mosaics and murals.

Williamsburg, Virginia offers visitors the unusual opportunity to walk through a fully reconstructed 18th-century city. As the capital of the Virginia Colony from 1699 to 1780, Williamsburg played a key role in early American politics and daily life. Today, Colonial Williamsburg spans over 300 acres and includes historic buildings, working tradespeople, and costumed interpreters who bring the Revolutionary era to life.