Light still pours into the ruins of this ancient Islamic observatory.

This "dead marsh" sits among the largest sand dunes in the world, a forest frozen in time.

Bizarre living fossil only grows in a small chunk of the Namib Desert.

Road signs in Namibia mark the location of one of the five major circles of latitude.

Ancient artists in the middle of nowhere.

Handcrafted thermal spa washes away each night with the tide.

Dinosaur eggs were first discovered at these fiery red cliffs.

At this museum in Iceland, visitors can sample fermented Greenland shark.

Built entirely of interlocking pieces, construction of this Chinese Muslim house of worship required zero nails.

These Egyptian statues have survived for 3,400 years and were an acoustic wonder of the ancient world.

An unassuming 13-acre park is home to over 12,000 roses.

Ancient barriers wrap around what was once an important stop along the Silk Road.

Cairns built to bring travelers good luck stretch across the land like miniature stone mountains.

Inside this Icelandic greenhouse, geothermal energy keeps tomatoes warm and growing.

This mysterious complex of abandoned yurts and fading murals was meant to be a center of science and spirituality in Kyrgyzstan.

This fairytale-like structure is the last turf church ever constructed in Iceland.