Ben Nevis via the Mountain Track

Ben Nevis ('The Ben') is the highest mountain in the British Isles, standing at 1,345 meters (4,413 ft) above sea level. Located beside the town of Fort William, the most popular route to the summit is the 'Mountain Track' (historically the Pony Track). Starting near sea level in Glen Nevis, this relentless out-and-back trail demands over 1,300 meters of vertical ascent. The path climbs through verdant lower slopes, crosses the rushing Red Burn, and ascends steep, rocky zig-zags to a true alpine environment. The summit is a broad, boulder-strewn plateau often capped in snow year-round, featuring the ruins of an 1883 meteorological observatory and scenic (if clear) views extending to Northern Ireland.

Mount Skåla holds a strenuous and proud distinction: it features the longest continuously steep uphill hike in all of Norway. Starting practically at sea level next to the Nordfjord, hikers face a grueling, unrelenting ascent of 1,848 vertical meters (6,066 feet) to reach the summit. The 5-mile (8km) one-way trail begins on a tractor road, transitions into dense alpine forest, and finishes on an endless, steep, zigzagging stone staircase built by Nepalese Sherpas. The sustained physical effort is rewarded with what is arguably the most spectacular panorama in the country—a 360-degree view dominating the massive Jostedalsbreen glacier (mainland Europe's largest ice cap), deep blue fjords, and jagged alpine peaks. At the summit sits Skålatårnet, a bizarre, historic circular stone tower built in 1891.