Twelve grave-faced marble angels guard the emperor's tomb at Les Invalides.

High atop the Eiffel Tower is a small apartment built exclusively to entertain the science elite and make the rest of Paris jealous.

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

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

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

A sanctuary for sickly, stray, or wounded donkeys.

Stocking up on the world's best beer requires a pilgrimage to a monastery drive-through.

According to this bar, God gave an “11th commandment” to Antwerp: Thou shalt drink beer.

An open-air sewer system that was covered piece-by-piece over 300 years.

Rare wooden escalators lead deep down into an otherwise staggeringly monotonous tiled tunnel.

Once designed as the entrance to Buckingham Palace, this structure was later relocated and stands as a victory arch.

The beloved beast's taxidermy remains sit in the Natural History Museum's cafe.

The famous polar explorer stands outside the Royal Geographical Society's headquarters.

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

This unassuming alcove in London’s famous Tower Bridge once served to capture, store, and display dead bodies from the River Thames.

The rose garden in Regent's Park where Pongo and Perdita met for the first time in Disney's "101 Dalmatians."

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

A statue marks the exact spot where The Boy Who Never Grows Up made his first literary appearance.

After nearly 60 years, there's still a bear at Paddington Station looking for help.

Hear the quietest sound from across the dome.

An unusual round church in London with a Templar past.

Eighty million natural history specimens call this gargantuan museum home.

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