The last moments of the ill-fated Pompeiians, frozen forever in plaster.

This medieval Italian town is a sheer (and beautiful) cliffside defense.

Ancient snack bar of the Roman Empire re-opened.

Breathtaking and huge 430 year old maps of Italy.

The Pope’s secret escape route.

Architectural monsters are devouring this palace's every door and window.

One of the few standing Roman lighthouses and a labyrinth of tunnels are a couple of the secrets at this historic castle.

Giant, friendly pelicans in Central London, the most unlikely of places.

The Bristol Camera Obscura housed in an ancient windmill.

This well-preserved Cistercian Abbey in a romantic pastoral setting has inspired artists like the poet Wordsworth.

The largest known medieval map of the world.

Rare collection of medieval books under lock and key.

The first North American landing spot for James Cook on his third voyage of discovery in the Pacific.

Two mammoth statues inspired by equally tall tales lure tourists to this roadside attraction.

Commonly referred to as the most photographed Victorian home in the United States.

This massive redwood tree has a hole in the base big enough to drive through.

Go inside to really appreciate this 500-year-old technological masterpiece.

Pilgrimage site for star-crossed lovers.

A castle built for love, and abandoned due to heartbreak.

This silent sentry in the crypt below a large Gothic cathedral is often knee-deep in water.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

This isthmus in the Bahamas narrowly separates the roiling Atlantic from the cool Bight of Eleuthera.

From overly ambitious (and eventually abandoned) atomic dream to bustling office park.

The deepest lake in the United States, and once the site of epic destruction that lives on in legends.