The world's largest wooden structure.

This former charity hospital for elderly clergy houses some of Seville’s most treasured paintings.

This quaint Spanish village agreed to be painted blue as a marketing stunt but found that they preferred it that way.

A hidden three-foot-wide house separates these two regal churches.

Elaborate tile work in this railway station tells the story of Portugal.

Ancient catacombs form the foundation for this Rococo orgy of a church.

This restored Portuguese cafe may well be the most beautiful place in the world to grab a Big Mac.

The stunning interior of this Gothic church is covered in ornate gold details.

Three bridges and one giant canyon make up this fantastic Spanish settlement.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

A tiny replica of the iconic London landmark hides on the side of the steel structure.

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

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

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

These ornate arches show how the course of the River Thames has changed.

A close look reveals that the Scottish monument is just slightly off-kilter.

Recently restored menagerie of Victorian-era beasts.

The fences outside some of South London's estates are made from recycled World War II stretchers.

An abandoned tank sits in an empty London lot as a symbolic middle finger to local city planners.

Arthur, Merlin, and Guinevere are among the largest and oldest satellite dishes on the planet.

The metal frame is all that's left of a wicker sculpture which once towered over the M5 motorway.

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

Regency-era excess on the English Coast.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.