Alexander the Great's easternmost city, the Panjshanbe bazaar and the Syr Darya river.
The gateway to Manuel Antonio: sloths and capuchins on the beach in the smallest national park.
The golden shrine of Imam Ali and Wadi al-Salam, the largest cemetery in the world.
Barbecue burnt ends, the jazz district at 18th and Vine and 200 fountains.
The Gateway Arch, 192 metres of stainless steel over the Mississippi, and the free zoo in Forest Park.
The Venice of the East on the Shatt al-Arab, date palms and the gateway to the Mesopotamian marshes.
The Pearl of the South: a French-founded city of neoclassical squares on a bay, and the Tomas Terry theatre.
The dhow-building yards, a lighthouse on the lagoon and the turtle beach at Ras al Jinz.
Balboa Park, the zoo, La Jolla sea lions and the best year-round weather in the country.
Hot springs and the Sea of Galilee, 200 metres below sea level, with Capernaum along the shore.
The Yukon capital: northern lights, the SS Klondike sternwheeler and the road to Dawson City.
The black-sand surf village of the Surf City coast, named for the pig-shaped rock offshore.
Cuba's first town, cut off until 1965: cacao, coconut cooking and the flat-topped El Yunque.
The Mesoamerican reef a swim from shore, West End dive shops and whale sharks.
The Thursday and Sunday market, the biggest in Central America, and incense on the steps of Santo Tomas.
Hemingway's house, the sunset celebration at Mallory Square and the southernmost point of the mainland US.
Hegra, the Nabataean tombs of the southern Petra, and the Elephant Rock in a desert of sandstone.
The cloud forest reserve, resplendent quetzals and the first canopy ziplines.
Adobe architecture, the Georgia O’Keeffe museum and the oldest state capital, at 2,100 metres.
A cathedral lit up every Saturday, an aqueduct and the monarch butterfly forests two hours away.
Mission Control at the Johnson Space Center and the most diverse food scene in the country.
Thirteen baroque churches of the gold rush on steep cobbled hills, with Aleijadinho’s sculptures.
Jellybean row houses, Signal Hill where Marconi received the first transatlantic signal, and icebergs in June.
The Arch at Land's End where the Pacific meets the Sea of Cortez, sport fishing and whale sharks.
The port of Ometepe, an island of two volcanoes in Lake Nicaragua.
Rosewater distilleries, the Fin garden and merchant houses with wind towers on the desert edge.
The 6th-century mosaic map of the Holy Land on a church floor, and Mount Nebo next door.
A Russian wooden mosque built by Dungans, the Sunday animal market and treks to Altyn-Arashan hot springs.
A colonial centre of pink stone and an 18th-century aqueduct of 74 arches, the safest big city in Mexico.
One of the best aurora spots on Earth, on Great Slave Lake, with an ice road in winter.
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