Five Arlberg villages depend on 580 metres of climbThe Arlberg pass road links St. Christoph, St. Anton, Stuben, Zürs and Lech, and keeping it open through a winter is a continuous operation with crews, galleries and a tunnel underneath it.
Hannes Schneider filmed his ski method and exported itHannes Schneider taught a sequenced technique at St. Anton from the 1920s, and the Arlberg method was exported through films, schools and, after 1939, through Schneider himself.
Flexen galleries deflect avalanches and keep Lech openThe Flexen road is cut into the wall and roofed where the avalanche paths cross it, which is why Lech and Zürs are reachable at all in February.
1884 turned Vorarlberg's winter barrier into year-round arteryLangen sits at the western mouth of the Arlberg rail tunnel, which has run under the pass since 1884 and made the whole region reachable before any road did.
St. Anton rotates cabins through a boarding wheelThe Galzigbahn's cabins are loaded on a rotating ferris wheel inside the station, an engineering answer to a site with no room for a conventional platform.
Four valleys fork at Mayrhofen and share one wallMayrhofen sits where four side valleys meet, which is why the lift network above it is larger than the town would suggest.
Hintertux stays open twelve months on glacier iceHintertux runs at the head of the valley through the year, which makes it a training base as much as a resort.
Zillertalbahn reached Mayrhofen in 1902 and survivesThe Zillertalbahn has run the length of the valley since 1900 and still carries both passengers and freight.
Bad Gastein built grand hotels vertically around falling waterBad Gastein was built as a spa town on radon-bearing thermal water and its grand hotels are terraced into a ravine with the falls running through the middle of them.
Kaprun reservoirs began in 1938 under forced labourThe Kaprun high-mountain reservoirs began in 1938 as a Nazi war project built with forced labour, and were finished after 1945.
Grossglockner Hochalpenstrasse closes every winter by permissionThe Grossglockner Hochalpenstrasse climbs to the Franz-Josefs-Höhe below Austria's highest peak. It was built in the 1930s, it is a toll road, and it closes for the winter — the point being that a mountain road is a decision that gets renewed every year.
Saalbach linked separate villages into one rideable loopSaalbach-Hinterglemm and its neighbours linked their networks into a circuit you can ride round in a day.
Königssee banned combustion engines in 1909 to preserve echoesThe Königssee lies inside a national park, its passenger boats have been electric since 1909, and the reason given is the echo off the Watzmann's east face.
Two thousand metres of east face separated WatzmannThe Watzmann east face is the highest in the Eastern Alps and it is the reason the mountain is written about in a different register from the ones around it.
Kehlsteinhaus took thirteen months because Todt blasted through winterThe Kehlsteinhaus is approached by a road and a brass-lined lift driven into the rock. It is a documented piece of Nazi-era construction and is written about here as engineering and record, not as spectacle.
Zugspitze railway bored four kilometres through limestone in 1930The Bayerische Zugspitzbahn climbs from Garmisch through a tunnel inside the mountain, and the summit is shared with Austria along a border that runs across it.
Two towns merged for an Olympics and never separatedGarmisch and Partenkirchen were combined for the 1936 Winter Games, and the ski stadium built for them is still in use.
Partnachklamm cut 80 metres down through Bavarian limestoneThe Partnachklamm is a 700-metre limestone gorge with a walkway cut along its wall.
How glacial flour turns alpine lakes turquoiseRock flour ground by ice stays suspended and scatters light toward green — the colour is a measurement of what the glacier upstream is doing.
Eibsee islands are debris from one rockfall eventThe Eibsee sits in the debris of an enormous prehistoric rockfall off the mountain above it, which is why its shore is a scatter of islands.
Achensee rack railway has climbed under steam since 1889The Achenseebahn has run up to the lake since 1889 and is still steam-hauled.
Alpenverein wardens have staffed huts since 1862A staffed hut has a warden, a bunk room, a booking system and a code of conduct that predates the lifts by a century. The Alpenverein clubs built the network and still run most of it.
Hüttenwirt staffing turned Alpine huts into timed infrastructureHuts exist to make multi-day movement possible, which is why they are placed by walking time rather than by view.
Two Alpine clubs split but never divided the hutsThe Austrian and German alpine clubs maintain huts and waymarked paths across both countries under a shared arrangement.