Þúfa hill in Reykjavik, Iceland

In the old harbour area of Reykjavik, Iceland, a hill called Þúfa (also known as Thufa) draws attention. The 26-foot-tall dome, consisting of some 4,500 tonnes of gravel, was built by artist Ólöf Nordal in 2013. A stone path spirals up the grass-covered hill and the top of the path affords a stunning view of the chilly Atlantic waters, the harbour, and inland to the city skyline. The panoramic view of Iceland’s capital also includes an excellent view of Harpa, the city’s iconic concert hall. That’s a fishing hut atop the hill, the kind of structure traditionally used to hang salted fish to dry, and a tribute to an important industry in Iceland’s past and present.