Buenos Aires' city of the dead contains some very famous remains, including Eva Perón.

The stoutest tree in the world.

A 16th-century monastery boasts a lush array of plants native to Mexico’s most biodiverse region.

The ruins of the bathhouse used by the ill-fated last Aztec emperor still lie in Chapultepec Park.

This foreboding building was the headquarters of the terrifying Spanish Inquisition in Mexico.

Where layer cakes tower above one’s head and there is never a shortage of icing.

A scientific repository of goiters, boils and other ailments throughout Mexican history.

A museum in the former home of Marxist revolutionary Leon Trotsky.

These planks were originally installed to hold the dead.

This strangely dressed taxidermy creature has a heartbreaking story.

This skewed English house has looked like it's going to fall over for centuries.

A pair of slides and a tree-lined stair corridor have been an urban oasis for nearly 40 years.

One of the few remaining examples of 19th-century London’s attempt to clean up its reputation.

A clumsy-looking flying locomotive rusts within sight of a busy rail station.

The beloved bard's garb is proudly displayed within a Freemason's hall.

An unusual ode to the late Irish playwright, complete with a squiggly bust and coffin-shaped bench.

A series of carved figures that scandalized British society.

Victorian-era Londoners really wanted to believe this 17th-century cistern was actually an ancient artifact.

Early Medieval stones sit on display at the beautiful Govan Old Church in Glasgow.

The unusual clock on this 18th-century market building has an extra minute hand for "Bristol time."

There's a labyrinth of manmade tunnels stretching for over an acre beneath Bristol.

17th-century merchants in Bristol nailed their deals by placing money on these pedestals.

This vintage gem is one of the oldest surviving purpose-built movie palaces in Scotland.

Banksy's image of a naked man dangling from the window of a sex health clinic.