Behind medieval walls in a corner of bustling Palermo is a breathtaking former mosque once inhabited by a wolf-taming hermit.

The oldest still-inhabited hill fort in India looks like a magnificent golden sandcastle.

Twelve hundred stone carvings guard this off-the-beaten-path Buddhist temple.

A moody and picturesque riverside ruin overgrown with vegetation.

This gaping hole in the middle of a remote mountain lake looks like a portal to another dimension.

On this stunning Scottish island, you can walk in the footsteps of dinosaurs.

On this wooded path, a stained-glass window creates a spellbinding forest cathedral.

The home of Ireland's last leprechauns is officially protected by the European Union.

A 12th-century church with a medieval fresco and an intriguing “Greek runestone.”

Moorish signal station on a stratgic rocky outcrop.

One of the largest ochre quarries in the world, hidden in a limestone landscape.

A miniature desert appears out of nowhere on the lush isle of Lemnos, like something out of a Greek myth.

An otherworldly, fossil-rich cobble beach holds Viking graves, cairns, and other remains.

The last inhabitants of one of the U.K.'s most remote islands were evacuated in 1930.

This abandoned fishing settlement may well be the greenest village in the world.

Archaeologists are still unraveling the secrets of the brutal massacre that wiped out this ancient fort.

Legend says a witch conjured the world's third largest whirlpool to protect Scotland from a nasty pirate.

This mountain sunrise is one of the most breathtaking views in Thailand, yet well off the tourist trail.

One of Europe's oldest yew trees has lived more than 2,000 years.

This medieval sanctuary's tree-framed door looks like a portal to a mythical realm.

The verdant mossy ruins of a Franciscan monastery lie in the remote Sintra hills awaiting exploration.

An engineering error ensured this cavernous 350-foot-long subterranean thoroughfare was never used as intended.

Watch the seas clash at the place where according to Maori tradition, the spirits depart for their journey to the afterlife.

The fire inside this temple has burned for more than 1,500 years.