Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

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

A closed London rail station created to cart away the dead still bears the marks of attempts to make it less morbid.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Artists and musicians now rule over this former rail station.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

London's smallest police station is barely the size of a phone booth.

A hands-off space for graffiti artists to hone and display their skills.

A special shop catering to the needs of things that go bump in the night, and also helps kids become writers.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

Eighty million natural history specimens call this gargantuan museum home.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.

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

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

This memorial to the victims of the Romanian Revolution of 1989 is often compared to a potato on a skewer.

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

This once-derelict building is now one of the most beautiful bookstores in the world.

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

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

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

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