Time travel with sweets across history at this research-based candy store.

These ancient giraffes are the largest known animal petroglyphs in the world.

A tribute to the Nirvana frontman hides beneath the bridge that was the singer's beloved hangout spot.

Finally, you don't have to be a pious Swedish seaman to relax like one.

This site commemorates the former inn and restaurant where the chocolate chip cookie was first crafted.

Known as the Sistine Chapel of Egypt, this tomb houses some of the most well-preserved paintings in Egypt.

A subterranean display of public art and architecture.

This hill is known for its connection to the occult in Slavic tradition.

Its frescoes depict the likeness of Marshal Tito, Karl Marx, and Friedrich Engels burning in hell.

This small corner bar is home to a rare 1930s dance organ that still plays tunes for one Euro.

A three-table eatery sits inside the home-kitchen of a seafood virtuoso in Bangkok's Chinatown.

Underneath the bustling city streets, a hydroponic farm grows unique herbs in an urban oasis.

The 1852 novel "Uncle Tom's Cabin" lends its name to a subway station, a street, and several shops on the edge of Berlin.

It's bad manners to eat and drink on the subways of Tokyo, unless the train is this bar. 

Inside the corridors of this flea market, visitors are sure to find some obscure and odd treasures.

This amazing ancient cave was kept secret for seven years to protect it from the public.

This bridge over the River Cuale leads to a neighborhood that was once an escape for Hollywood's elite.

The best-preserved ancient theater in the world.

This 15th-century Serbian Orthodox monastery also contained a school for illuminating manuscripts.

A plaque pays tribute to the artist's longtime London home.

This museum sits on the site of a decommissioned military communications base.

The hero of the women's suffrage movement birth home is now a museum dedicated to her legacy.

Glasgow's memorial to the International Brigade volunteers from Great Britain who fought and died in the Spanish Civil War.

The city walls of Salé lead to the ruins of this seaside "bastion of tears."