Built in 1899, this luxurious home was part of one of the first gated communities in Los Angeles.

The Hollywood home of Kermit the Frog and Yoda used to be Charlie Chaplin's film studio.

This iconic neon jester is a local landmark that you might recognize from his cameos in film and television.

This beloved, whimsical weiner topped an eclectic variety of Los Angeles buildings, including a Thai restaurant and an advertising agency.

A building that looks like a giant hedgehog, in the middle of East London.

Two gold-painted post boxes to celebrate a local Olympic gold medallist.

A quartet of tiled art pieces adorn the floors of this prestigious art museum.

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

A statue for a zoo that was never built.

This life-size monument honors the legacy of a famous literary feline.

This tree was grafted from the actual tree that led Isaac Newton to ponder the theory of gravity.

The Cambridge pub where Francis Crick announced that he and James Watson had discovered the DNA double-helix.

Local legend says Isaac Newton built this footbridge without any screws, bolts, or nails.

Numberless clock creates a meal of time for the dreaded, insectile Chronophage.

A well-studied colony of endangered bats roosts in this abandoned Victorian Gothic mansion.

The last known resting place of the king who united England.

Over several decades, one of London’s most iconic city gates was dismantled, moved out of the city, and then moved back.

Tables of secondhand books fill the inner courtyard of this 17th-century stock exchange.

This triumphal arch celebrating the Sun King's conquest of Lille is a masterpiece of military architecture.

This London plaque marks the spot where David Bowie's famous alien made his debut.

One of America's founding fathers lived in this London lodging between 1757 and 1775.

Hidden beneath the streets of London is a secret subway that only carried mail.

This building contains a door only used by members of the royal family.

A memorial for public executions that dates back to the 14th century.