Legendary pedestrian bridge in the centre of Romanian city Sibiu.

This is the birthplace of Vlad the Impaler Vlad III Dracul.

This Transylvanian church has changed its denomination four times.

Romania's triumphal arch looks out over Bucharest.

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

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

Something's watching you.

This snug medieval lane is one of the narrowest streets in the world.

The Natural History Museum that time forgot.

This communist behemoth is the heaviest building in the world and a legacy of a brutal regime.

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

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

The romantic botanic tunnel feels like a well-kept secret.

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

The possible imprisonment of Vlad the Impaler here earned the medieval castle its nickname, "Dracula's Castle."

This massive underground salt mine now holds a sci-fi theme park in its depths.

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

Rest stops along this pathway offer some of the best views of the Acropolis of Athens.

An abandoned Byzantine fortress and notorious prison.

A little-known park with unusual, half-ruined structures and a mystical energy.

These ruins in Volvi were once at the intersection of the Eastern and Western Worlds.

Heralded as the world's first theater, these ruins are often overlooked as they reside in the shadows of the Acropolis.

Legend says this sacred tree was a gift from goddess Athena.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.