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

One part local history, 99 parts gruesome haunted house.

The perfectly preserved underground rooms where Churchill plotted the war against Germany.

A charming 17th-century alley is lined with secondhand bookstores and antiquarian shops.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

This churchyard arbor is surrounded by hundreds of gravestones placed there by author Thomas Hardy.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A kaleidoscopic warehouse-maze of handmade neon signs.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

London's creepiest cemetery was once the site of dueling magicians and mobs of stake-carrying vampire hunters.

This pedestrian walkway cuts through a cemetery and over several burial vaults.

This unassuming stone commemorates a condiment factory gone up in smoke.

These towering spires and glowing walls are carefully crafted from hundreds of thousands of icicles.

A reconstituted ancestral village of the Huron-Wendat Nation.

Concrete pillars provide a beautiful canvas for Quebec City's graffiti artists.

A 400-square foot model of historic Quebec is the playing field for a state of the art light and sound show.

This former prison now houses a lovely library devoted to Quebec's oft-maligned English-speaking history.

A contemporary fresco movement illustrates the region's rich history.

These light, hollow rolls have been linked to Acadia National Park since the 1890s.

A roadside park in eastern Maine first marked the halfway point between the equator and North Pole with a brass pin in 1896.

This tiny patch of arid sand sits in one of the greenest states in the United States.

The grave of Mary Nasson is shrouded by witchy legends.

These mansions date back to Chicago's days as a brewer's paradise.

San Francisco's oldest surviving monument and meeting place for 1906 survivors.