An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

Hear the quietest sound from across the dome.

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

One part local history, 99 parts gruesome haunted house.

The luxurious English estate houses the world’s largest private collection of French Rothschild wines.

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.

A busy island at the center of the world that doesn’t actually exist.

These docile dragons are ideal inhabitants for the conservatory greenhouses.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

The patch of land below the memorial was gifted by the British to the United States.

A 13th-century fortified manor house that was once sieged during the English Civil War.

Manchester's abandoned train depot lingers in a post-industrial purgatory.

The designer of this railway tunnel added a birthday present for himself.

The only medieval bridge in Britain with its defensive tower still in tact.

Britain’s longest ancient monument, this great 8th century earthwork was built to mark the boundary between what would become England and Wales.

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

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

A mud brick kasbah with a history of lavishness and traitorship.

A fortified city, home to a remaining population of five families

An "inside out" building in the historical center of Paris, featuring Europe’s largest modern art museum.

One of the largest museums in Ukraine remembers the story of the German-Soviet War in iconic, brutalist style.

An Art Nouveau building covered in animal gargoyles and grotesques.

One of the two original gateways into the Kasbah, this gateway is a nesting site for storks.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.