Visit Cairns

The largest sand island on Earth — rainforest, dingoes and the freshwater Lake McKenzie.

Fringing reef in Western Australia where whale sharks cruise close to shore.

Visit Adelaide, capital of South Australia. Wander the Botanic Garden (glasshouse rainforest, restored 19th-century palm house), see Australian and Indigenous art at the Art Gallery of South Australia, browse the historic Central Market (one of the largest undercover fresh produce markets in the Southern Hemisphere), and take in a match or tour at the Adelaide Oval (iconic cricket ground with heritage scoreboard and city views).

A city built on water with no cars — gondolas, Byzantine mosaics, and getting happily lost in the back canals

Visit Krakow, the historic former capital of Poland, known for its medieval Old Town, Wawel Castle, and vibrant cultural scene.

The Renaissance in one walkable city: Michelangelo's David, Brunelleschi's dome, and the Uffizi

Acclimatize in Cusco, the Inca capital where colonial churches stand on six-hundred-year-old stone foundations

A walled medieval upper town above modern Bergamo — Venetian ramparts, funiculars and Lombard charm