World's second largest particle accelerator, where nature reveals its secrets.

The only structure left with direct ties to the Salem witchcraft trials of 1692.

Impossibly life-like natural history models created out of glass by a father and son.

Ice cream stand, snack bar, and time capsule of milk conveyance.

The world's largest piece of copyrighted artwork.

Once a private collection, now the only museum of arms and armor in the Western Hemisphere - CLOSED.

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

Hundreds of lucky felines haunt the ruins where Caesar was murdered.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Renaissance hospital featuring a rotating door into which unwanted babies were dropped.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

An enormous, inside-out glass globe built in 1935.