A Bicycle Path in the Sky.

The beautiful 1920 Pantages Theatre remains hidden just underneath the LA Downtown Jewelry Exchange.

Crypt mausoleum in cathedral's basement contains relics of third century Roman martyr, Saint Vibiana.

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

Small museum packed with artifacts recovered by the man rumored to be the real-life inspiration for Indiana Jones.

The block of aged dairy is probably still edible after 2,300 years in a peat bog.

These imposing walls and towers look more like the ruins of a fortress than a monastery.

This ancient Irish landscape boasts hundreds of legendary ruins.

Wallabies live naturally on this Irish island.

A particularly disconcerting tribute to Irish martyrs.

This collection of illusory paraphernalia has been culled from the history of London's premier magician's club.

The curios of pharmacist and collector Henry Wellcome.

A measuring mishap led to these artificial stone ladies losing their stomachs.

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

This medieval church tower has maintained its clockworks since the 16th century.

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

An eccentric 18th century naval officer built a ship's quarterdeck on his roof, the inspiration for Mary Poppins's "Admiral Boom."

This studio was home to David Bowie's first single, even if it did turn away the Beatles.