London is one of the great cities of the world, and its attractions are well known: the Changing of the Guard at Buckingham Palace, Big Ben and the Houses of Parliament, Westminster Abbey, the Tower of London and St. Paul’s Cathedral. If you’re a first time visitor to London, you’ll want to see them all. If time permits, try to fit in a visit to the Royal Observatory at Greenwich, the shopping districts of Regent Street and Knightsbridge, and the energy of Covent Garden and the Portobello Road market.

Situated where the Seine estuary meets the English Channel, Honfleur has been an important port of trade and defense for centuries. Tall, narrow buildings line cobblestone streets in the Vieux Bassin, the historic harbor, and attract Parisians on summer weekends. Look up for the 15th-century wooden spire of the Église Saint-Étienne, the oldest church in town and now a maritime museum. Contrast it with the Église Sainte-Catherine, built entirely of wood by the town’s shipbuilders. Honfleur has a long tradition of inspiring artists in the impressionist school.

The friendly village of Invergordon is your gateway to the Scottish Highlands. Visit Cawdor Castle, built in the 14th century and considered one of the most stately homes in the Highlands. The founding family, the Thanes of Cawdor, live there to this day. Next up is Dunrobin Castle, the ancestral home of the Clan Sutherland and one of the oldest inhabited houses in Scotland, featuring stunning formal gardens that run down to the sea.

Kirkwall is the largest settlement and capital of Orkney, an archipelago in the north of Scotland with history tracing back to Norse times in the 11th century. With history such as this, ancient archaeological sites are the highlight of a visit. The most important monuments can be found at the Heart of Neolithic Orkney, designated a UNESCO World Heritage site. The Ring of Brodgar is one of the finest known truly circular Neolithic stone rings. Other sites that are fascinating to tour are Maeshowe, the Standing Stones of Stenness and the ancient Neolithic village of Skara Brae.

Portugal’s capital on the Atlantic Ocean is comprised of several key districts built on seven hills. A good place to begin is the historic Alfama district, a maze of medieval streets and alleyways leading to a hilltop on which you will find the Castelo de São Jorge. One of Lisbon’s most popular attractions, the castle provides sweeping views over the city. Descend to the riverfront Baixa district to enjoy its shopping, restaurants and neoclassical architecture.

Las Palmas, the capital city of Gran Canaria island, is a bustling city that weaves the vibe of the Spanish mainland into a unique tapestry of life informed by world cultures including African, Chinese and Indian. A city of superlatives, it's one of Europe's biggest ports with one of the world's best climates and the cleanest air of any Spanish city according to a WHO study. Many also believe that the long, wide stretch of Las Canteras is one of the world's great urban beaches.

Guernsey is a self-governing British Crown Dependency, and one of the Channel Islands in the English Channel close to the French coast. The handsome town of Regency-style buildings is a short walk up from the pier and a delight to explore. Visit Castle Cornet, a fortress that has guarded the harbor for eight centuries. After visiting the five museums housed within, you’ll become an expert on Guernsey history. Another popular attraction is Hauteville House, the former home of the exiled 19th-century French literary giant and author of Les Miserables, Victor Hugo.

Located on the northeast coast of Brittany, Saint-Malo has long been an important French port and today keeps busy receiving ferries arriving from the UK. This walled city is ringed with mighty ramparts and towers built to protect its inhabitants from intruders long ago, and a walk along the ramparts makes for a pleasant tour. The most famous attraction and one of the most popular in France is nearby Mont St. Michel, a rocky tidal island that has been one of the top pilgrimage sites for Christians through the ages.

Lying below the steeple-rich skyline of Charleston is an architecture buff's dream. Founded in 1670, the port is now host to eight distinct building styles. It also claims the country’s first museum and the harbor where the first shots of the American Civil War were fired from Fort Sumter, accessible via a pleasant ferry ride. Antebellum history is revealed at Boone Hall Plantation, famous for its stunning avenue overarched with moss-draped live oak trees more than two centuries old.