Passport? Good.

Compared across countries

Where can you leave your luggage for the day?

For a trip that crosses borders — the same question, answered country by country.

The pattern

Station lockers are the shared answer in three of the four. The United States is the exception: coin lockers have largely gone from its stations and airports, and what stands in their place is a staffed counter at a handful of Amtrak stations. What differs among the rest is the meter — Japan adds counters that hold a bag for weeks, Korea splits its machines between card and cash, and China charges by the hour with a daily ceiling.

Sort the practical stuff before you fly.

eSIMs, rail passes, and airport transfers — the things worth booking before you land.