Singing Robot, 18th Century Silver Swan Star in London Exhibit

A singing robot and a 244-year-old working model of a Silver Swan will greet visitors to a new exhibition at London's Science Museum spanning 500 years of humanity's quest to build intelligent machines.

The "Robots" exhibition which opens this month will feature over 100 models in what the museum calls the most significant collection of humanoid robots ever displayed.

Among the star attractions is U.K.-built RoboThespian, a full-size humanoid robot who will move around the exhibition, do vocal exercises and give a theatrical performance to visitors every 20 minutes.

The Silver Swan automaton was designed and built in the 18th century by John Joseph Merlin, the inventor of roller skates. It featured at the Paris Exhibition of 1867 where it was seen by American author Mark Twain, who later described it in his novel "The Innocents Abroad."

Other notable pieces on display include the original skeleton of the T-800 robot used in the filming of "Terminator Salvation," Honda's ASIMO humanoid robot and Inkha — a reactive robotic head that offers cheeky fashion advice to viewers.

"Robots" runs from Feb. 8 to Sept. 3. The swan will only feature for six weeks, this month and next.