Phil Mortillaro uses keys to bring art back to the Village.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

A terrific purveyor of natural history objects and curios.

Love, knishes, and best wishes from this legendary Lower East Side bakery.

Avoid gangster interaction while window-shopping.

This fairytale castle was built as a show of power but was nearly torn down thanks to its history of torture.

An extraordinary library and archive dedicated to the history of the Arctic and Antarctic poles.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

A treasure trove of astronomical, mathematical, and scientific instruments at Cambridge University.

Eighty million natural history specimens call this gargantuan museum home.

Rebuilt remains of a temple to Roman god Mithras.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

The popularity of Sherlock Holmes led to the creation of his fictional address, turning the orderly London street numbers askew.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

The curios of pharmacist and collector Henry Wellcome.

An unusual round church in London with a Templar past.

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

A naturally mummified 2,000-year-old man.

Giant, friendly pelicans in Central London, the most unlikely of places.

The crypts of Capuchin friars decorated with the bones of over 4,000 friars, including an entire "crypt of pelvises."

Christ's blood allegedly preserved in a Belgian town.

The long, arduous journey of the stones of the Abbey of New Clairvaux.