This medieval manuscript collection has some of the most obscure and ancient texts in the world.

The remains of Uruguayan hero José Artigas lie beneath a monument in Montevideo’s main square.

A friendly pub with a sordid past in cock fighting.

Never actually a tree at all, this spot was the site of London's public hangings for nearly 600 years.

These official units of measurement—including chains and perches—lie hidden beneath tourists' feet in a popular London hub.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

The Florence Nightingale Museum is home to the famous nurse's most treasured possession: her beloved pet owl.

A plaque hangs near the execution place of the Scottish Independence leader famously depicted in "Braveheart."

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

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

The bar where "The Great Train Robbery" was planned was once a nexus of high society and low morals.

The pioneer of psychoanalysis spent the final year of his life here, still seeing patients on that famous couch.

Eclectic final resting place of the controversial explorer.

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

This legendary stone is of unknown origin, and throughout history has been a literal touchstone for British leaders.

Scattered throughout London are ancient remnants of the city's former bounding wall.

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

London's smallest police station is barely the size of a phone booth.

The site of London's first coffee house has been serving refreshments of one kind or another for 360 years.

Several plaster noses are hidden in plain sight around London's Soho neighborhood.

A student driver's nightmare.

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

Winding paths and ramshackle mausoleums in the oldest "park cemetery" in London.

A 300-year-old tea shop that brought tea to the English people, not to mention the Queen herself.