United States
So many wildflowers in July that the entire valley floor turns electric purple.
In July the valley beneath Crested Butte turns electric with lupin, paintbrush and columbine so dense the trails vanish into colour. The air at nearly nine thousand feet is thin and sweet with pine resin, and Elk Avenue's painted Victorian storefronts stand bright against the dark wall of mountains behind.
Crested Butte wears the title of Wildflower Capital of Colorado, with blooms peaking in July and a festival of guided walks and botanist-led hikes to match. The town dug coal until the early 1950s, and when the mine closed the miners' cottages and false-fronted stores survived intact, which is why Elk Avenue still looks like itself. The skiing that replaced the coal runs to the extreme end of the sport, steep rocky lines other resorts would rope off, and in summer the single-track riding from the town's edge includes some of the most celebrated trails in America. Around fifteen hundred people live here year-round, up a road that goes nowhere else.
Couple
Walk meadows that look arranged for the occasion, then split a bottle from the town's own high-altitude rum distillery as the light leaves the peaks.
Friends
Trade challenges between the extreme ski lines in winter and the famous single-track in summer; the town is small enough that the group never loses itself.
Family
The wildflower festival's guided walks suit small legs, the beginner trails start at the edge of town and hot chocolate arrives from a shack clad in licence plates.
Coffee hand-roasted in small batches at a shack clad in licence plates, a local landmark in its own right.
High-altitude rum from the town distillery's tasting room, an unlikely speciality at nearly nine thousand feet.

Tateyama Kurobe Alpine Route
Japan
A road cut through snow walls twenty metres high, towering above the bus roof.

Jeongseon
South Korea
A rail bike hurtles down the old coal line through pitch-dark mountain tunnels.

Castleton
England
A village ringed by caverns where Blue John stone glows violet in the torchlight.

Göynük Canyon
Turkey
Wade chest-deep through turquoise water between vertical canyon walls into a hidden waterfall chamber.

Sleeping Bear Dunes
United States
Sand bluffs four hundred and fifty feet tall plunging into Lake Michigan's turquoise shallows.

Kenai Fjords
United States
Exit Glacier retreating in real time; the trail markers show where it stood each decade.

Acadia National Park
United States
Winter's first American sunrise strikes Cadillac's pink granite before the country below wakes.

Yellowstone
United States
Earth exhaling through turquoise pools while bison block the only road ahead.