A particularly disconcerting tribute to Irish martyrs.

"We gonna rock down to Electric Avenue, and then we'll take it higher..."

An artistic tribute to the famous singer, just around the corner from where he was born.

The childhood home of Earth's alien chameleon is a humble Brixton flat.

Inside this chapel, Victorian jailers took the separate system to new levels.

Legend says this demonic carving inside a medieval cathedral was one of Satan's minions.

Modern commuters still pass through this 2,000-year-old Roman archway.

A six-ton wedding present for the King of the Scots.

The most loyal of little dogs, or a Victorian era publicity stunt?

A sweet symbol marks the place where torturous executions were once carried out.

Medicinal spa created with the discharge from a geothermal energy plant.

One of the oldest family businesses in Reykjavík serves lamb-based hot dogs.

This tiny museum's sizable collection is jammed into a former underground public toilet.

An encyclopedic collection of mammal penises.

One of the tallest buildings in Iceland, and perhaps, the most visually impressive.

This whimsical public art installation is a unique homage to Liverpool's industrial heritage.

Made of granite, this is a symbol of the Inuit peoples near water that expresses abundance.

This masterpiece of muralism depicts the rich culture of the people of Michoacán and their timeless connection to the land.

Many people don't realize there’s a lot going on in—and below—the world’s tallest triumphal arch.

66,000 pieces of art, donated by one of the world's richest men.

Frida Kahlo's childhood home, now a museum of her life and works.

This unique architectural wonder is also tied to one of the 20th-century's most renowned writers.

This historic covered bridge contains a series of macabre paintings that communicate one thing: everyone dies.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.