Ancient barriers wrap around what was once an important stop along the Silk Road.

When a supermarket opened up shop within a medieval building it became protected by UNESCO on a technicality.

The big toe of this towering monument to a Croatian national hero is worn from years of superstitious rubbing.

The interior of this church has been turned into a memorial to locals who died in Croatia's Homeland War.

Pablo Neruda's custom-built lover's nest was made to remind him of the sea and named after his mistress' hair.

This sculpture meant to honor the bravery of the Indigenous Mapuche people of Chile proved controversial.

A monument to the more than one million enslaved Africans deported from the port of Ouidah.

Dozens of snakes are housed and worshipped within the walls of this Vodun temple.

Africa's Venice on stilts.

This narrow street is packed with street vendors and bars selling chicha.

Every Sunday, Bogotá turns 75 miles of its city streets into a bicycle superhighway.

This Bogotá museum houses the world's largest collection of pre-Columbian gold relics.

Cathedral carved out of salt, located a mile below the Earth's surface.

In the heart of Tirana, this underground nuclear bunker has been transformed into a museum.

Pilgrims each carried a brick to the top of Mount Monserrate to help build this historic sanctuary in Colombia.

The spot where three Protestant clergymen were burned at the stake during the reign of "Bloody Mary."

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

Hidden in plain sight, this creepy sculpture watches from above.

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

An extraordinary collection of scientific instruments - and Einstein's chalkboard - inside the world's oldest purpose built museum building.

Site of the first hot air balloon flight conducted by the first English balloonist.

The lantern carried by the infamous Guy Fawkes when he was arrested while attempting to blow the houses of Parliament and the King of England to smithereens

Used as an example in one of the first dictionary entries for "museum" in 1706.

One of Europe's oldest libraries.