A replica of the steam engine that hauled Queen Victoria's Royal Train is on display at Windsor.

All unmarked mute swans on the Thames are owned by the Queen per a tradition that began in the 12th century.

The patch of land below the memorial was gifted by the British to the United States.

An odd little fishing town that is inundated by tourists looking to be locked up in a cage and surrounded by great white sharks, because why not?

This palatial botanical garden is home to one of the largest pipe organs ever installed in a private residence, and a piece of Wood's cycad.

Relics of the 1894 Midwinter Exposition continue to delight visitors today.

An elaborate gift from Claus Spreckels is now a piece of San Francisco history.

Golden Gate Park's historic collection of plants.

An overlooked and unassuming engineering marvel.

Carnivorous plants, medieval aphrodisiacs, and the largest original wood structure glass conservatory in the western hemisphere.

The oldest lawn bowling club in the United States.

A famous alternative culture epicenter and where Joplin serenaded young hippies.

Over 50 exquisite hand-painted Renaissance maps decorate a Medici storage room.

The middle finger of modernity.

Drink wine handed out through a window as part of an age-old tradition.

Historic medieval fortified city in southwest France.

Ancient paintings known as the "Sistine Chapel of Cave Art."

This 1,300 year old monastery built atop a single rock was once only accessible depending on the whims of the tide.

This enormous "cloth of the conquest" depicts the Norman invasion of England in mind-blowing detail.

A reproduction of earth's many biomes.

The world's only teal arches exist in a city that cares more about its aesthetic than an Instagram influencer.

The largest natural travertine bridge in the world is nestled in a small canyon in central Arizona.

See massive fossils that are over 200 million years old in northeastern Arizona.

Red sandstone structures dominate this landscape, which has been inhabited for some 5,000 years.