This sprawling scenic burial ground is the final resting place of Japan's last shogun.

This hauntingly beautiful cemetery outside a medieval citadel is full of winding paths and ivy-covered graves.

Nine centuries-old fortresses guard the walls of this medieval Romanian city.

Some call this eerie forest of crooked trees the "Bermuda Triangle of Romania."

A 250-year-old timepiece-automaton adorned with golden mechanical birds, which still sing to this day.

The oldest museum in Russia is home to a fascinating collection of nearly two million anthropological artifacts and anatomical curiosities.

An ever-growing literary collection housed in the apartment where the Russian author penned his final novel.

A city block packed with whimsical sculptures that seem to be plucked from a tiled fantasy world.

This colorful artistic feature atop a Danish art gallery allows visitors to stroll through a rainbow.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

A 19th-century subterranean reservoir repurposed as a contemporary art cave.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

Tiny effigies of the victims of Edinburgh's famous Anatomy Murders.

A book bound in the skin of an infamous criminal, along with countless other specimens.

Hidden on a cobblestone street in Glasgow, a Czech Cajovna-inspired teahouse serves as a hangout for Bohemians.

The elaborate clockwork contraptions in this Scottish gallery create small worlds of whimsy and horror.

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Stone Age solar temple is aligned with the sun on each equinox and solstice.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

According to the Guanches, the aboriginal people of the Canary Islands, the king of evil lives inside this volcano.

The names Lúthien and Beren can be found inscribed on the shared grave of the famous writer and his beloved wife and muse.

An expansive complex of subterranean tunnels is all that remains of one of Europe's most formidable medieval fortresses.

Unsurprisingly, Holland is home to one of the most magnificent flower gardens in the world.

Single runway interrupted by a busy road that cuts across its middle.