Visit the Flame Towers in Baku

Fifteenth-century royal complex at the heart of Baku’s walled old city.

Neo-Gothic riverfront parliament, Budapest’s defining silhouette.

A pentagonal caravanserai-temple built over a natural gas vent, used by Zoroastrians and Hindu pilgrims.

Up to 3,000 people cross in every direction at once when the lights change — the world’s busiest pedestrian scramble.

Glide past Budapest's floodlit landmarks.

Glide the 17th-century canal ring past gabled merchant houses, houseboats and 1,500 bridges — the city as it was meant to be seen.

Restored colonial old town, UNESCO-listed.

Cafe-lined riverside old town.