An ancient capital city that dates back 3,000 years old and harbors many surprises.

The ancient tomb acts as a calendar that keeps perfect time.

An ancient iron pillar in Delhi that seems to be rustproof.

The longest living non-clonal organisms on Earth.

A small museum filled with over 1,000 clocks, and one particular clock calibrated to run until the year 9999.

Constantly maintained, this organ is playing a six-century long composition by John Cage.

The gilded, masterful astronomical clock will calculate time, dates, and planetary positions for thousands of years to come.

A modern mechanical planetary system, part of a 10,000 year clock.

A musical composition 1000 years in length plays at the Trinity Buoy Wharf in London.

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

The bells remain in a shattered heap exactly as they fell when the church was bombed in World War II.

A mysterious pair of mice eating a piece of cheese is London's smallest public sculpture.

A serpentine highway twists and turns over the treacherous Norwegian Sea.

The only presidential monument to display a late POTUS's actual casket.

A hidden treasure in London with a rich medieval history, and the resting place of many luminaries.

An unusual round church in London with a Templar past.

The largest of London's subterranean rivers and once a mad, bad center of London life.

Funded by John D. Rockefeller, this is one of the earliest, and most beautiful, shopping arcades in America.

As telephones become more essential and less stylish one historic Brooklyn building remembers the days when they were a grand celebration of communication.

This spectacular public market has got meat, fish, vegetables, baked goods, and enough kielbasa for a lifetime.

The curious underground history of keeping Paris clean.

This beautiful Victorian ironwork masterpiece was built to keep London from smelling like poop.

Amazing and mysterious Neolithic settlement on Scotland's Orkney Islands.

Putting the "mod" in "modular" since 2000.