Look up from the busy streets to discover how time is kept!

Tucked away in the Tower of London is the weapon once used to execute high-profile prisoners.

There's an exclusive Beefeaters pub hidden in the Tower of London.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

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

Graffiti from the 16th and 17th centuries cover the walls of this part of the Tower of London.

A mysterious suspended hand greets unsuspecting visitors at the Tower of London.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the first ‘Harry Potter’ film.

Giant, friendly pelicans in Central London, the most unlikely of places.

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

Chelsea's soldiers were given strict orders when crossing this historic bridge.

A makeshift shrine to the late rock star is still kept up on the nondescript façade outside 1 Logan Place.

In the depths of the Everglades, one man has dedicated his life to studying the elusive Skunk Ape.

The smallest post office in the United States is no bigger than a broom closet.

An abandoned vacation home spent a decade taking on legends. It's now taking on water.

The giant squid's 27-foot-long corpse lies preserved within a Sarasota aquarium.

Giant novelty guitars now mark the spot where Robert Johnson is said to have sold his soul to the devil.

Clap your hands at the base of the pyramid, and the song of a sacred Mayan bird will echo through the air.

No telescopes, no power, no gift shop: The Observatory of Chichen Itza, one of the world's oldest observatories, takes astronomy back to basics.

Every equinox this Maya pyramid puts on a spooky ancient light show.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

An overlooked monument to the celebrity gangster who helped put the sin in Sin City.