A unique structure located on the grounds of one of five grand palaces that were built by the Joseon dynasty.

Take a few seconds to look at this abandoned, art-filled station as you pass by on the subway to Ueno.

This enormous monument is one of the most iconic structures in Tokyo, rudely nicknamed "The Golden Turd."

A sad reminder of the World War II bombing stands largely unnoticed on a street corner.

Once a black market electronics marketplace, now an otaku shopper's paradise.

Colloquially known as “piss alley,” this narrow street filled with tiny bars and barbecue stands looks like it was pulled straight out of “Blade Runner.”

The sign marks one of the endpoints to mainland Britain's longest overland travel route.

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

The last four extravagant street signs of London's historic banking street.

A quiet memorial to those who died saving others in the heart of the City of London.

The ruins of a church destroyed by both the Great Fire of London and the Blitz, now turned into a peaceful garden.

Hear the quietest sound from across the dome.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Rebuilt remains of a temple to Roman god Mithras.

This ancient Egyptian obelisk still bears the wounds of World War I.

England's most famous front door has an accidental doppelganger.

This inn of the court provides a fascinating window into London’s legal and architectural history.

The pretty iron lamp is a reminder of the architecture underneath London's streets.

Its collection includes a broad array of social, geographic, graphic design, and political history.

An unusual round church in London with a Templar past.

Hidden beneath the streets of London is a secret subway that only carried mail.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.