This London pub hides a peculiar secret: a recreation of the rooms shared at 221b Baker Street by Sherlock Holmes and Dr. Watson.

The bridge is a secret gallery of discarded gum that has been transformed into miniature masterpieces.

Murals of the wild parties once held on the frozen River Thames.

Originally meant to hold a statue of King William IV, this support sat empty for years. Today, it hosts a rotating cast of public artwork.

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

Buried for centuries, this hidden cellar is all that remains of London's medieval Whitefriars Monastery.

A friendly pub with a sordid past in cock fighting.

This historic building displays the remains of a victim of the devastating 14th-century plague.

Remnants of cells from the most notorious London prison may lie in the basement of a rare Victorian Gin Palace.

One of London’s rare Tudor-era buildings is a fate-defying gatehouse for a church.

Mary Kelly was last seen here before she was murdered by Jack the Ripper.

Explore nearly 400 years of English middle-class home life.

Two plaques commemorate the site of Shakespeare's first theatre.

Artists and musicians now rule over this former rail station.

Preserved behind glass, the ruins of a medieval building used to store human remains.

This pub boasts a curious history and may have inspired a Dickens character.

You can spot this teeny tiny stained-glass window from the Bonifacius bridge.

Christ's blood preserved in a Belgian town.

A piece of stonework relief commemorates the site where the Devil's rage, and odd apparel, destroyed a house.

This gorgeous reading room houses the oldest and largest art history library in the Netherlands.

Established in 1638 to battle the Black Death, Hortus Botanicus Amsterdam is a treasure trove of rare flora.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Tucked in the back of a flower shop, its collection details the fascinating history of the Netherlands's iconic symbol.

This former Masonic lodge has been transformed into part museum, part bar, all awesome.