Serbia's master of striking memorials erected a forgotten, hidden gem in the hills outside a tiny village.

This memorial park stands on the site of one of the largest mass executions of the Second World War.

This spaceship-like Serbian monument reaches for the stars in celebration of the fallen fighters of fascism.

A sinuous path among steep cliffs creates a stunning sight in southwestern Serbia.

This 14th century castle withstood years of battle but is now sliding off the hills into the Danube.

Rare documents, old instruments, and gruesome specimens showcase the history of military medicine.

Moscow's most popular cemetery includes the graves of numerous cosmonauts.

This 11th-century structure is one of the oldest churches in Romania.

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

Climbing to the top of the cathedral's bell tower offers sweeping views of these medieval ruins.

A memorial museum to the political prisoners who were held at Sighet Prison, once one of the most feared places in Romania.

Packed to the ceiling with antique taxidermy and hunting arms.

A fire once nearly devoured this gorgeous 14th-century Gothic cathedral.

A medieval church built up to defend its village.

Something's watching you.

This Romanian village may have been drowned, but it is long from forgotten.

The preserved arm of a third-century sorcerer is believed to have the power to lift curses and spells.

Romania's only crater lake with water as pure as if distilled.

A muddy alien landscape that is home to rare species of exotic plants.

No one knows who built this strange cave of worship or exactly why.

One of the oldest churches in Romania is believed to have been built on the site of a pagan temple.

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

A small town Romanian cemetery filled with darkly humorous gravestones.

A fortress off the West coast of Portugal that dates back to 1502.