Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

An elaborate Mayan city shrouded in alien conspiracy revealed the tomb of Pacal the Great.

A student driver's nightmare.

A 1,215-foot tunnel transports pedestrians beneath the River Thames.

A tribute to the intrepid explorer and his crew who perished in terrible conditions on an ill-fated expedition to the Arctic.

Thanks to modern navigational tools we now know that the true prime meridian runs through a park next door.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

Charles Babbage's proto-computer, painstakingly brought to life.

A clock designed to run with perfect accuracy for 10,000 years.

This one has sailed five times as far as Sir Francis Drake's famous ship.

A museum wholly devoted to juvenescence.

Eighty million natural history specimens call this gargantuan museum home.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

This artist's home turned gallery/museum preserves the creator's love of "Eastern" influences.

The handiwork of a underdog clockmaker who solved an impossible problem for an Empire, and forever revolutionized seafaring.

The majority of the museum's large collection is held in a storage space open to the public a few times a year.

400-year-old garden, restored to beauty.