The tallest unclimbed mountain on Earth is off-limits by law
Gangkhar Puensum in Bhutan rises about 7,570 metres and has never been summited. The country banned climbing on peaks above 6,000 metres out of respect for local beliefs.
Why hardtack outlasted the ships that carried it
Sailors’ biscuits made from flour, water and salt were baked until rock-hard. Some surviving pieces from the 1800s are still intact in museums.
Countries with the strangest borders
Enclaves within enclaves.
Places that are only open a few days a year
Seasonal wonders worth planning for.
Greetings from around the world
Bows, kisses and handshakes explained.