Hamburg's first legal sex work is relegated to a gated street that still does not allow pedestrian women.

This red light district plaza memorializes the Fab Four and their historic connection to the area.

A completely underground tour following the path of the most precious element: water.

The final resting place of the famous violinist, after his corpse was denied a proper Catholic burial for decades.

Where mountaineers were checked for lice before entering the city.

The city of Parma's cathedral is home to one of the greatest illusionistic frescoes of the Renaissance.

The skulls and bones of thousands of soldiers line the walls of this small Italian chapel.

One of the oldest still-working clocks in the world sits on an ancient tower.

An unusual round church in London with a Templar past.

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

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

Black cat statues guard this temple-like Egyptian revival factory.

A display of everyday life in the area that was unveiled during the 2012 Summer Olympics.

This life-size monument honors the legacy of a famous literary feline.

A little slice of Japan and its aesthetics in London's Holland Park.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

London's smallest police station is barely the size of a phone booth.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

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

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

The rotting skeleton of a shoreside fun fair that was destroyed by fire and storms still haunts the Brighton ocean view.

This tiny alleyway is now a shrine to a subculture riot between the mods and rockers.

Regency-era excess on the English Coast.