Þingeyrakirkja
A 6.3-km (4-mile) detour off the Ring Road on Route 721 leads to Þingeyrakirkja, a unique 1877 church constructed of basalt and limestone and located in a picturesque setting next to the lovely Lake Hóp. Make sure you visit this attraction when it's open so you can marvel at the interior, which features a 15th-century altarpiece and an extraordinary dome-shape, midnight-blue ceiling, covered with countless golden stars. Next to the church is a visitor center offering light refreshments.