Haleakalā Crater

Get up very early to drive to the top of Haleakalā and see the sunrise and take in the gorgeous views, drive up a little later in the day for just the views, or come at night for stargazing.

Goðafoss

On the way between Laugar and Akureyri, this is a beautiful horseshoe-shaped waterfall in north Iceland. It's also where Christianity became Iceland's official religion (pick up a guide book to learn more). Walk the paths to check out the various viewpoints.

Krafla Volcano

Krafla volcano is a mountain in north Iceland which has been intermittently errupting for the past 3,000 years. The Viti crater is filled with a beautiful, clear lake. You can drive there to check out the lake, and there's a hiking trail around the crater if you want even more scenic views.

Námafjall Hverir Viewpoint

Hverir is a large geothermal area near Myvatn. A wasteland full of pools of boiling water and mud and smoking fumaroles, it's surrounded by red soil. It also has a heavy scent of sulphur, but gives a decent understanding of what powers the whole country: geothermal energy from volcanoes and springs. Evidently, it's the closest you can get to the feel of Mars on Earth.

Gullfoss

Seen on a tour of the Golden Circle, this massive two-stage waterfall plunges dramatically into a steep gorge. Walk along an easy pathway to see multiple vantage points.

Geysir

Visit this site of the original geyser, accounts of which date to 1294. Geysir is rarely active, but Strokkur, a nearby geyser, erupts with a 30 meter spout every five to ten minutes.