The purported midpoint in London from which all distances are measured has a tragic love story at its core

A timeline of London history on the Thames Path, installed in 2014

The ruins of a once-mighty medieval palace are hidden away in otherwise modern London

The world’s first permanent museum dedicated to female genitalia.

In 1190 one of the worst anti-Semitic massacres of the Middle Ages took place in a wooden tower which previously occupied this site in York.

The little-known second castle that William the Conqueror built in York.

One of the shortest streets in York has an especially odd name.

An attempted suicide made this cliff famous.

These once housed the families who decided in 1665 to quarantine themselves to save their neighbours.

The whimsical twist of this spire was either caused by the Devil, an unexpected virgin, or lead.

Since 1995, two red-painted metal figures have guarded the entrance to the Northern Ballet.

This university building was once voted the ugliest building in the world.

The whimsical steel spider lurking in the shadows of this suspension bridge shows that engineers can have a sense of humor.

The once-a-day siren is a reminder of the days before time was standardized.

A jumble of concrete on the corner of one of London’s terraced buildings is actually a work of art.

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

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

An archway adorned with vulnerable flora and fauna.

These ornate arches show how the course of the River Thames has changed.

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

The fierce beast perches atop a pedestal marking where the historic City of London gates once stood.

An unusual round church in London with a Templar past.

This is London's smallest listed building.