The Twin Sisters peaks are the eastern-most peaks of Rocky Mountain National Park. The Western summit is the most frequented summit of the two but is the lower of the two. This route is an out and back peak climb. It is a total of 6.8 miles with around 2,200 feet of gain. The Western summit is at 11,413. The trail has recently been changed since the 2013 floods. 

There is a Strava segement of the route.

Stetind (1392 metres) is a mountain in northern Norway. It is located about 15 kilometres (9 mi) northeast of the village of Kjøpsvik. The mountain has very smooth sides reaching all the way to the fjord. Stetind has an obelisk-shape which gives it a very distinct look. In 2002 it was voted to be the "National Mountain" of Norway.

The Denis Rankin Round is a circuit of all the peaks in the Mourne mountains over 400m in height, covering 90km and 6500m in ascent. The challenge is to complete this within a 24 hour period.
It can be completed CLOCKWISE or ANTI-CLOCKWISE
http://www.denisrankinround.com/

The website lists all known finishers.