The ancient heart of Tunis is an enormous maze of narrow streets and alleyways.

Dedicated to the god Dionysus, this theatre was used for both musical and theatrical performances.

This is the oldest Roman-made bridge in the city still existing in its original state.

The only remaining arch of the oldest stone bridge in Rome stands in the middle of the Tiber.

The yawning maw of this pagan visage is said to bite off the hands of liars.

According to a gruesome legend, an architect sacrificed his wife to build this spectacular, 16th-century cathedral.

This elaborately decorated, fairytale-like Romanian royal palace is one of the most striking castles in Europe.

Conspiracy theories and occult legends surround this mysterious natural rock formation.

Something's watching you.

This bone-filled cave got its name after they found 140 bear skeletons inside.

Once the legendary capital of the Dacian Kingdom, this city has been reduced to mere ruins.

Visit an imposing 13th-century Transylvanian citadel lurking not far from the region's more heavily touristed attractions.

This fairy-tale castle would make Dracula (who is said to have been imprisoned there) jealous.

A giant portrait of an ancient king looms over the river.

Moss and stone turn this waterfall into an otherworldly liquid veil.

An old spa town in the mountains of Romania where, according to legend, the great hero Hercules once bathed.

Romania's "Red Ravine" is a little-known natural wonder that bears a resemblance to the Grand Canyon.