In a small churchyard in Dingolfing, Germany the quaint Schusterkapelle is there to remind you of your imminent mortality.

The barrel-made lookout from Shackleton's final ship is tucked away in the crypt of one of London's oldest churches.

The Great Fire of London and the regulation of one-way streets both started in this alley.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

An architectural oddity hides in plain sight on this iconic London bridge.

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

The broken skateboards that became a poignant memorial to a murdered skater.

Paris' linguistic guide to the international language of, yes, love.

Original cabaret handbills, posters, and feline artwork are a purrfect highlight of the Museum of Montmartre.

The oldest and smallest cemetery in Paris is only open to the public twice a year.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

A lush indoor jungle fills this bustling Madrid transportation hub.

A pair of gigantic baby heads greet passengers at Atocha Station.

The remains of the second-oldest zoo in Europe can be seen within these library gardens.

One of Madrid's oldest trees, with a long and colorful history, resides in El Retiro Park.

Madrid's romantically ornate crystal palace has been offering shelter to plants and art for over a century.

The earliest known map to show America, discovered by accident at a Paris bookshop.

A vault of safe-deposit boxes in an old bank has been repurposed as a time capsule of Hispanic culture.

Known as the Casa de las Siete Chimeneas, this haunted 16th-century manor has a dark, mysterious past.

This abandoned coliseum was intended to be a grand Nazi rallying ground before it was halted at the end of the war.

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

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

The world's only museum devoted to the wonders of fluorescence.