London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

This small 16th-century church in Athens is almost entirely surrounded by a modern building.

There are many Byzantine-era churches still standing in Athens, but this is the only one with a 2,500-year-old column rising through its roof.

The Cycladic architecture makes this Athens neighborhood feel like an island paradise hidden in the shadow of the Acropolis.

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

A 2,000-year-old computer demonstrates remarkable engineering and astronomical precision.

This ancient hydrological marvel is now the base of a modern outdoor cinema.

Large collection from the 3rd millennium BCE.

A medieval military street hidden beneath a charming French fishing village.

The construction of a tram line unveiled hidden remnants of the old medieval city.

An Orthodox church built by the Royal Family for the Russian community exiled to the French Riviera.