This great stone guardian of the forest is a relic from the land's volatile volcanic past.

Walk behind a 50-meter-high waterfall.

Iron Age "bog person" preserved for over 2,300 years.

The ghost town left by the worst nuclear disaster of all time is being taken over by nature and urban explorers.

With nearly double the depth of the Grand Canyon, this Peruvian canyon is one of the deepest in the world.

Lithuania's outdoor sculpture trail of wooden folk art.

A signal indicates the entrance to this alley, rumored to be a meeting place for witches.

The fountain marks the area where hundreds of accused witches were burned at the stake.

New England's "Witches of Eastwick" locations, in all of their quaint white churched glory.

Two monstrous faces loom over a village in Czechia.

Spanning the El Chorro gorge, this pathway used to be one of the most dangerous crossings in the world.

A mysterious set of tunnels carved in the hills of rural northern Kyushu.

A toxic lake near a volcanic caldera that is home to flamingos and other life.

Lions carved into the rockface adorn these two tombs built into the mountains of Dadan.

Eco-village hidden in the foothills of the Alps that created a massive system of psychedelic underground temples.

Founded during the Ayutthaya era, this unique Buddhist temple remains shipshape to this day.

The abandoned "Ghost Mansion" was left to decay in the mountains of Northern Italy.

An eerie, derelict amusement park in Berlin.

One of the oldest libraries in England, and one of the last of the great medieval chained collections.

This enchanting Victorian estate was home to the world's first hydroelectric power generator.

Acres of natural wonders left behind by a socialite-turned-gardener.

This iconic 1,000-year-old medieval castle is a favorite of the film industry, most notably as the location for Hogwarts in Harry Potter.

The sign at the garden gate reads: "These Plants Can Kill."

This portion of a lovely Belize beach is infested with (harmless) sharks and rays.