Most are next to remains of the original Roman wall.

Early settlement is witnessed by remnants of a Roman wall.

These date back to the medieval period and some are built above pre-existing Roman walls.

Lugo is the only city in the world to be surrounded by completely intact Roman walls.

Kaisersesch is also home to a well preserved Roman wall.

We stood on the edge looking down on archaeologists brushing Roman walls.

Some of the 2nd-century Roman wall has survived to this day.

Well under six feet, he was built like a Roman wall, one massive building block set down upon another.

It is interesting with the ancient Roman wall passing through the restaurant.

The original Roman wall, dating from the 2nd century, still visible for more than 1,500 meters.