This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

The little-known second castle that William the Conqueror built in York.

The first archaeological site discovered by aerial photography.

This ingenious engineering solution was built to stop the "theft" of canal water.

A unique flight of canal locks that owe their form to 19th-century cost-saving measures.

The longest canal aqueduct in England was built without a plan to get water past the moving boats.

A great example of the inventive canal bridges that were deliberately split down the middle.

Known as the "Stairway to Heaven," this historic canal dates back to the 1700s.

This museum explores the history of the city's public transportation. Its collection includes the world's oldest preserved electric trolley car.

This decommissioned nuclear power plant offers tours of its Communist-era control room and reactor hall.

Oberweissbacher Bergbahn - a broad-gauged cable car capable transfering railcars.

A steam powered train that runs on city streets.

A rare water-powered funicular, it uses a huge tank of water and gravity to do its work.

A tiny island is connected to the mainland by a private railway that residents travel in their own personal wagons.

An amusement park on the grounds of an unused nuclear power plant, with a swing ride inside the cooling tower.

This old wooden funicular railway leads to a cemetery in the forest.

A subterranean display of public art and architecture.

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

The many—66 to be exact—faces of the German forest.

Model Trains and Much More in Hamburg.

The world's tallest church tower reveals a spectacular view to anyone up to the task of climbing the daunting staircase.

Enter the cabin of a life-sized Hindenburg replica.

This painted Lego bridge is the product of over a century of locomotive history.

One of the most easily accessible examples of the rare 1960s UFO houses.