The large collection of pre-Columbian pottery might make you blush.

The Uros people live on floating reed islands in lake Titicaca.

Lima’s Museum of Anthropology is lined with thousands of elongated human craniums.

Preserved Inca city and site of the last Inca stronghold against the Spanish conquistadors.

A remote candy-striped mountain in the Peruvian Andes straight out of the pages of Dr. Seuss.

The intricate stonework of Machu Picchu serves as a testament to Incan engineers.

Eclectic final resting place of the controversial explorer.

Pop culture has helped to keep this iconic British building from being destroyed.

London's last remaining public soapbox site has seen speeches from Karl Marx, Vladmir Lenin, and George Orwell.

A collection dedicated to the treatment of disease, held in London's oldest hospital.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

A network of concealed passageways lies within a busy London Underground station.

One part local history, 99 parts gruesome haunted house.

Eighty million natural history specimens call this gargantuan museum home.

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

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

The world's oldest known salt mine.

Giant WWII fortresses that fired 8,000 rounds a minute, now home to thousands of pigeons.

Op-art architecture designed for happiness.

A spherical "micro-nation" in the heart of Vienna.

The final resting place for the remains of 143 Habsburg royalty.

The crypt of the imposing Stephensdom holds royal intestines and thousands of skeletons.

A standalone wonder amid the prairie badlands of southeastern Alberta.