Mary Kelly was last seen here before she was murdered by Jack the Ripper.

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

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

An unusual round church in London with a Templar past.

Catacombs turned marketplace.

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

A student driver's nightmare.

This South London cemetery holds the remains of more than 15,000 people.

Eighty million natural history specimens call this gargantuan museum home.

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

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

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

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

The National Railway Museum in York is the largest railway museum in the world, attracting almost 1 million visitors per year.

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

This network of narrow, medieval passages has the most delightful name.

A century-old tradition has culminated in a small but singular collection of feline effigies.

Follow the original medieval paths that wind through this intriguing section of the city.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

This massive memorial commemorates those who died in the Manchester Arena bombing.

The construction of this bridge dates back to the 15th century.

Contrary to its heavenly name, this tranquil oasis has a dark and tragic history buried with it (quite literally).

The city of Manchester quietly unveiled this tribute to a 19th-century massacre.

The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.