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

In this cobwebbed old operating theater, you can practically hear the screams of the unanesthetized patients.

An incarceration museum on the spot of possibly the oldest prison in England.

This 1920s Dutch barge is now a floating bookstore.

The quaint little store that is said to have inspired a famous Dickens novel was only given its name after the book was released.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

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

A kaleidoscopic warehouse-maze of handmade neon signs.

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

This basement museum explores the art and artistry of fascism.

Where royalty waits in the height of luxury.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

The former headquarters of history's oldest megacorporation.

A set of seven houses, each built in a style that represents a European country.

Amsterdam's narrowest house facade is a monument to 17th-century tax evasion.

A poignant museum dedicated to the history of the Dutch resistance against Nazi occupation

A rare tour of an aristocrat's private home reveals valuable 17th-century paintings from artists like Rembrandt.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This cheese shop also houses a museum devoted to Dutch dairy.

An Amsterdam street lined with antique shops each one dedicated to a different obscure collection.

An ancient passage filled with stalls selling used books, once frequented by Vincent Van Gogh.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.