A Portuguese Jewish cemetery filled with stunning grave monuments that date back to 1614.

This historic Amsterdam bar used to accept sailor's monkeys as payment.

The world's only museum devoted to the wonders of fluorescence.

A giant interactive periodic table with real samples of the elements.

This Czech church doubles as something of a permanent fashion exhibition for a statue of the Infant Jesus.

A sculpture of the iconic East German car on four legs is a tribute to those who traveled to Prague seeking asylum.

A collection of anatomical samples from one of the first anthropologists to suggest that humans reached North America by crossing the Bering Strait.

The fairy tale castle of the "fairy-tale king."