One of the world's largest collections of pathological specimens.

London's old-school healing garden.

A mysterious artist-run cabinet of curiosities and library.

This coffee shop lies hidden beneath a historic church.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

This hidden green space is the city's second largest conservatory.

The anatomical-pathological collection of a man who changed surgery.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

An unusual round church in London with a Templar past.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

The only university zoological museum in London houses extinct animals, bizarre natural history specimens, and a Micrarium of microscopic creatures.

This 1920s Dutch barge is now a floating bookstore.

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.

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 Harry Potter films.

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

The pile of books behind the dignified writer gave the statue a most undignified nickname.

According to tradition this is the oldest church in Venice, but its actual age is a mystery.

This deconsecrated church has seen many uses, from a tobacco storehouse to a cinema.

The only museum with its curator—and her pets—buried inside.

In the past, Renaissance sex workers were encouraged to entice customers on this bridge.

Where Venice's gondolas go for a tune-up.

The small peaceful island off the Venice tourist circuit is where the city began more than 1,500 years ago.