This jaw-dropping 19th-century bridge uses its reflection to form what appears to be a perfect circle.

The home of the morbid art of corpse plastination is open for visitors to view the fascinating, but stomach-churning process.

The walls and ceiling of this Polish church are decorated with thousands of skulls, with another 21,000 skeletons just below.

The world's largest collection of ships in bottles.

A beautifully eclectic mix of architectural styles.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

A former plague hospital turned medical museum.

This small museum collects the Christian remembrances which would otherwise be forgotten.

Oldest Museum of the Netherlands is a true cabinet of curiosities.

A curious collection dedicated to human and animal anatomy and pathology.

A Museum of Psychiatry in a still-operating mental institution.

This ghost town in Belgium will lose its street art when it ceases to exist.

Medical history with an amazing, if frighting, collection of wax diseases on display.

The Devil’s own choice when he needs a drink in Brussels.

Lavish royal estate punctuated with heated greenhouses.

Dummies recreate radiological discoveries from history.