The first integrated firehouse in Atlanta houses a museum on the history of desegregation in the city's fire department.

Civil War soldiers, captains of industry, and paupers all interred on historic grounds.

Proceeds from this colorful teahouse in a historic Atlanta neighborhood directly fund women’s education in northeast India.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

An underground magnet for ever-changing street art.

Just a few miles from downtown Atlanta is a trail covered in a crazy collection of outsider art.

The fanciest public restroom in New York City boasts fresh flowers, art, and a classical music soundtrack.

The famous facade of Grand Central Terminal hides a regulation tennis court, and it's not the first one.

A Manhattan office building is home to the world's largest chess board.

A fully functional, 200-year-old remnant of the time when Brixton was mostly fields.

The ritual has been performed uninterrupted for nearly 700 years.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

An architectural oddity hides in plain sight on this iconic London bridge.

London's only public statue of the much-married monarch adorns the gate to St Bartholomew’s Hospital.

A portly statue of a golden boy commemorates an unusual cause of the Great Fire of London: the sin of gluttony.

One of the greatest movie directors of all time lived and worked in this London flat from 1926 to 1939.

This Viking gravestone carved in a rare runic style was dug up from a London churchyard.

This unique bridge curls up like a caterpillar to let boats pass and then unfurls again to span a small canal.

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

Revel in the Victorian splendor of the world's oldest eating establishment inside a museum.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

Two plaques commemorate the site of Shakespeare's first theatre.