Dictionary Johnson’s favorite feline.

Abstract dinosaur models in London.

Scattered throughout London are ancient remnants of the city's former bounding wall.

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

A Victorian natural history and ethnographic museum with wonderful turn-of-the-century, science-book-esque evolution displays.

The remains of Crystal Palace Great Exhibition of 1851.

A 2000-year-old Roman amphitheater lies just below Guildhall Yard.

Eighty million natural history specimens call this gargantuan museum home.

A historic house left in "dramatic still life."

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

The taxidermy remains of the first mammal ever cloned from an adult cell are on display in Edinburgh.

17th century streets hidden under Edinburgh were once a breeding ground for the black death.

The hidden lair of an alchemist rediscovered in a 2002 flood.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

This whimsical group of statues is a favorite of children who love to climb all over Lewis Carroll's beloved characters.

This artificial ring island was built to hold cubic tons of polluted dirt.

A miniature city, once ruled by the Queen of the Netherlands.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

In the middle of downtown Brooklyn lies a 165 year old secret hidden right below the surface (closed to the public indefinitely).

This futuristic airport terminal was abandoned for decades before reopening as a hotel—with a vintage plane of its own parked out back.

A Dutch clog company in the town of Zaandam loves the wooden shoes so much it made a museum for them.

A beautifully eclectic mix of architectural styles.

This 1920s Amsterdam neighborhood was built as a giant experiment in concrete construction.