Dating back almost 400 years, the oldest public collection library in the United Kingdom was once the study hall of Karl Marx.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

Mysteriously stacked storefront paths give this medieval British town an iconic style like none other.

Hear the quietest sound from across the dome.

Wedged between two buildings at the Great Ormond Street Hospital is this secret music installation.

An easily overlooked stretch of ornate window fronts and gaslight lamps that could be right from the pages of Dickens.

One of the few remaining casualties of the London Blitz, this destroyed church has become an enchanting public garden.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

The largest collection of medicinal plants in Australia is also home to a witch who will show you how to use them.

A massive stairway that almost wasn't leads to one of Australia's most scenic vistas.

A collection of outdoor mystical statues paying homage to indigenous Australians and ecological stewardship.

An Oxford museum where visitors can have tea with the Mad Hatter and climb through the wardrobe to a fantasy land.

A gallery specifically dedicated to the botanical illustrations of a remarkable traveling lady.

The shop where the girl who inspired the beloved character once bought sweets is now a book-themed commercial curiosity.

A stretch of land where the sour-sweet vegetable is cloaked in darkness and grows so fast you can hear it crack, squeak, and pop.

One of the largest mechanical models of the solar system in the world.

This hidden 13th-century tavern room has a few Shakespearean connections.

A theatre built to house the rowdy Oxford graduation ceremonies became the stage for a debate about God's existence.

The last Victorian market in Belfast.

A movable feast that is an East London institution.

Be on the lookout for the symbolic insect all over the city.

A Victorian marvel of engineering is now a 21st-century tourist attraction.

The small bright red pillar survived the 1996 Manchester bombing virtually unscathed.

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