This ancient Egyptian obelisk still bears the wounds of World War I.

This slice of 1960s Danish modernism does not conform to the Oxford college stereotypes.

A plaque is all that remains of a lost Oxford transport hub.

The bell that once tolled atop a lost Edinburgh gate now hangs for all to see.

The ritual has been performed uninterrupted for nearly 700 years.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

Created by one of England's most prolific labyrinth designers, inspired by Bath city history.

Once one of the largest rooms full of books in the world, this bookstore basement is still a treat for bibliophiles.

Climb to the top of its spiral spire for spectacular views of Copenhagen.

The remnants of this unusual bridge await an uncertain fate.

This emotive sculpture was originally created for the 1878 World's Fair.

A beautiful Victorian statue shows France's enduring love of the rhinoceros.

A mud statue stands in the dark tunnels, seeming to hold up the weight of the city above.

The water-powered carriages are long gone, but for over a century this funicular railway has been the fastest route to the highest point in Paris.

This surreal statue brings a famous French novel about a supernatural cad to arresting life.

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

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

The sixth of London's "Magnificent Seven" cemeteries, and a source of unlikely inspiration to Beatrix Potter.

A unique tribute to the millions of animals who served and died for the British military.

A labyrinth hides in plain sight at each of the city's 270 Tube stations.

A hidden plaque is the only reminder of the lost palace where two storied English kings were born.

This centuries-old pub boasts a collection of more than 4,500 snippets of neckties from around the world.

The stoic structure boasts a whimsical set of stained glass art commemorating Lewis Carroll.

Dozens of large-scale, creative, evocative curios from prominent artists dot the calm outdoor space around this major museum.