The oldest inn in Kilkenny was established by the first convicted witch in Ireland.

Northern Ireland's Brobdingnagian stepping stones.

The gorgeous library at Trinity College is home to remarkable treasures of Irish identity.

The modern birthplace of Irish freedom.

An Iron Age fort on the edge of a seaside cliff offers a glimpse into an ancient, mystical world.

This historic address is home to the beloved ball and is an almost totally empty building among the most expensive real estate in the world.

A collection of more than 12,000 shoes, displayed in a building shaped like a shoebox.

A book collector's dream, this Toronto bookstore has the world's first "Biblio-Mat," a random book vending machine.

The very center of Paris is surrounded by a bevy of strange good luck rituals.

19th century pendulum and a clock restored by a rogue group of guerilla artists.

The celebrated eyesore created by starry-eyed sweethearts.

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

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

An incarceration museum on the spot of possibly the oldest prison in England.

Giant, friendly pelicans in Central London, the most unlikely of places.

London's smallest police station is barely the size of a phone booth.

France's most famous cemetery, with some of its most curious tombs.

An unusual round church in London with a Templar past.

This iconic Parisian bookstore doubles as the "Tumbleweed Hotel" for traveling writers.

The vast, legendary catacombs hold secrets much stranger than stacked bones.

One of the largest underground systems runs under Canada's largest urban center.

This inexpensive lodging house was once a prison notorious for its inhumane practices.

The purported world's shortest international bridge connects a homeowner in Canada to his backyard in New York.

Soaring over the Niagara Whirlpool since 1916.