The conversion—one of the last projects that the Iraqi-British architect worked on before dying—wraps a landmarked structure in Rome with a futuristic second skin.

Ahead of a record-breaking travel boom, the capital’s best stays fuse futuristic comforts with artisanal touches—proof that Japanese hospitality is constantly being reimagined.

You can go all out with these insanely luxe new suites in the the world's biggest high-end destinations, like São Paulo and ...