A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

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

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

The remains of Crystal Palace Great Exhibition of 1851.

Hear the quietest sound from across the dome.

Eighty million natural history specimens call this gargantuan museum home.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

The world's oldest grape-producing vine has survived four centuries of turmoil and even has its own anthem.

This historic island prison holds one of the dungeons from the Count of Monte Cristo even though it is a work of fiction.

For hundreds of years, automatons moving to metallic music have been marking the passage of time.

A Swedish phone box converted into an informal village library.

A tiny town hall—in Sweden's one-time capital—might be the smallest in Europe.

Sweden's oldest street has not changed for nearly a millennium.

This poignant sculpture of a gnarled weapon is a symbol of non-violence.

Swedish skyscraper with a 90° twist.

This chimerical bridge/tunnel appears to dead end right into the sea.

These ancient rune stones plucked from the countryside now call this university park home.

A concrete mushroom that divided Stockholm residents for nearly a century.

A Stockholm metro station is home to an escalator that is not only the longest in Sweden, but among the longest in the world.

Sweden's "good old days" painstakingly re-created in a model village.

Stockholm's deepest subway station is also a stunning ecological wonder.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

The great polar explorer is remembered in this far northern town, where he embarked on his final expedition.

Resonant stone, that has been played since prehistoric times.