A little-known cafe in an old copper bridge tower with 360-degree views of the harbor.

A novel collection of medical curiosities housed in an 18th-century surgeon training academy.

Museum on earth sciences featuring a recreation of a famous curiosity cabinet.

The largest bottled beer collection in the world holds over 22,000 unique beer bottles.

The old observatory in Copenhagen has a spiral corridor used as a racetrack.

This sublime architectural marvel is a rare example of an expressionist church.

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

The world’s largest magazine collection was born from a single shelf in a teen’s bedroom.

An archive of ceramic eggs painted to record clowns' personal makeup designs.

The canine-themed book collection claims to be Europe's largest dog library.

This historic London residence was once the womb of Scientology.

Three small rooms at the back of the “official” church of London's clowns.

The remains of the great moral philosopher reside in a university in London.

Artists and musicians now rule over this former rail station.

A collection of comics, graphic novels, animation and caricatures devoted to exploring this often overlooked art form.

This massive collection of British military artifacts includes the heartbreaking personal letters of the men in the trenches of WWI.

This wildly-tiled artist's palace is a living and growing account of the creator's life, loves, and labors.

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

The curios of pharmacist and collector Henry Wellcome.

A tongue-in-cheek arcade where the games are based on everyday life.

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

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.