Tour Madrid’s historical monuments on a double-decker bus, then take a high-speed train to the sunny Costa del Sol; four-star accommodations

Cruise along the Thames, take an open-air bus ride past Big Ben and Westminster, and follow Jack the Ripper's infamous trail in Whitechapel

Explore the pyramids of Giza, visit an open-air bazaar, and cruise down the Nile River on a nine-day tour of Egypt

Guided city tours through Hanoi and Ho Chi Minh City; see Reunification Palace and Angkor Wat; airfare and hotels included

Take a guided tour of Cape Town, sample award-winning wines in the Franschhoek valley, and then venture into a big-game park on safari

Tour of India's Golden Triangle region includes stops in New Delhi, Jaipur, and Agra; visit Taj Mahal and Qutab Minar; includes airfare

Eight-day, self-driving tour of central Switzerland; explore the Berner Oberland region at the foot of the Jungfrau, Eiger, and Mönch mounta

Guided city tours through Hanoi and Ho Chi Minh City; see Reunification Palace and Angkor Wat; airfare and hotels included

Mountain treks, spa services, and Moroccan cuisine at lakefront resort with infinity pool overlooking Atlas Mountains

Mountain treks, spa services, and Moroccan cuisine at lakefront resort with infinity pool overlooking Atlas Mountains