Ride the subways of yesteryear.

Lie in a hammock where George Washington stood.

Elevated freight railway turned wildly successful urban park.

The most confusing clock in New York.

New York City's only preserved family home from the 19th century.

A terrific purveyor of natural history objects and curios.

Blighted Irish field and the ruins of a 19th-century cottage on the edge of urban Manhattan.

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

A toy store with a century-long history preserves the craftsmanship of playthings of the past.

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

Hear the quietest sound from across the dome.

A cluttered and astounding collection of antiquities and curiosities.

One part local history, 99 parts gruesome haunted house.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

A museum on the history of Paris, including a set of Napoleon's toiletries, Proust's room, and relics of the Revolution.

The celebrated eyesore created by starry-eyed sweethearts.