Places Marbles07 Wants to Go

Resonating tubes make music from highway overpass.

One of the world's most definitive collections of musical instruments, spanning all cultures and historical periods.

A metal tree emits eerie, melodic notes on top of Lancashire's Crown Point.

A large instrument played by the wind.

This nine-story building can be played like an instrument.

A whimsical sensor instrument for Minneapolitans to play on their walks to work.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

A scenic fort on the harbor protected Philadelphia from an attack that never came.

The miraculous hydrant that saved the Mission District in 1906.

Hear the quietest sound from across the dome.

This Czar-funded, onion-domed, lavishly muraled Orthodox Church played a starring role in "The Deer Hunter."

19th-century operating theatre in which the use of ether was first demonstrated - plus, a skeleton and a mummy!

Once the largest unsupported dome in the world, beating out the Pantheon and St Peters in Rome.

Designed by Buckminster Fuller, this relic of the 67 Expo survived fire and ice.

Plot your trip through the city on the sidewalk.

A walkable map of the world, made from soil and stone by one man.

A petroglyph map of the upper Snake River carved by prehistoric hunter-gatherers.

Visit the WWII bunker where the British won the battle for the skies.

The largest known medieval map of the world.

Breathtaking and huge 430 year old maps of Italy.

The world's oldest map of the holy land gives us a fragmented glimpse of the layout of biblical nations.

Mysterious man-made rock piles form an ancient cemetery on this rocky beach in Norway.

The only fixed chain and post trail in Scotland snakes its way along the base of a towering seaside cliff.

An eccentric inventor's castle home with its own indoor weather system.