A mysterious ancient network of thousands of perfectly straight lines stretching across miles of Bolivian desert.

The official meeting point for the oddly named governing assembly of ancient Sweden.

Tens of thousands of ancient rock carvings hidden in the heart of a French national park.

One of the most scenic stretches of road in America winds between some of the country's oldest trees.

Stripes of flowers bloom each spring in a 50 acre rainbow of color.

A unique waterfall that some believe attracts the fairfolk.

A site of pagan worship which still attracts people looking for fairies.

An isolated 17th-century chapel on a remarkable site once dedicated to Celtic sun worship.

The enigmatic stone has towered over a Northern Ireland town for thousands of years.

This 5,300-year-old tomb with mysterious carvings crowns an Irish mountain.

These moss-covered medieval ruins tower atop the smallest of Ireland's Aran Islands.

Modern megaliths form this work of cosmic, Celtic landscape art.

These ancient sea caves hold Britain's highest concentration of Pictish rock carvings.

An ancient chamber filled with wonderful rock art and a Neolithic carving of a human face.

This ancient Irish landscape boasts hundreds of legendary ruins.

This Neolithic-era complex boasts standing stones, a cairn, and the only henge in Western Scotland.

This Neolithic stone circle is the most complete of its kind in Scotland.

This tidal island, a sacred site in early English Christianity, was the target of a notable Viking invasion.

A magnificent, iconic stone tower in the Scottish Highlands.

The mysterious megaliths have enchanted and intrigued visitors for thousands of years.

The Avenue of Mausolea is a series of grand palatial tombs.

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

In the heart of Luxembourg's "little Switzerland" weaves a breathtaking natural sandstone canyon with a mythological past.

A tiny, picturesque island, where cows and wild horses wander around the houses.