For centuries, Jeddah’s old town was a major trading port and a point of entry for Hajj pilgrims traveling by sea.

Al Rahmah Mosque appears to "float" atop the Red Sea.

Dublin's most modern, visually spectacular bridge is modeled after Ireland's national emblem.

A guitar mounted on a wall in Temple Bar honors the Irish musician.

This Victorian-era public house has set the standard for pub-style elegance for over a hundred years.

It was once nicknamed "the most bombed hotel in Europe."

For part of the year, this innovative greenhouse is painted white to keep the plants from getting scorched.

A giant sculpture of the legendary "Salmon of Knowledge" celebrates the return of fish to Belfast's River Lagan.

A museum marks and documents the site of the Titanic's launch.

A series of stained glass artworks that depict images of the hit TV show.

The highest peak in all of England is plagued by dangerously fickle climate shifts.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

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

This medieval castle is filled with an eccentric collection that ranges from ancient Egyptian artifacts to taxidermy to a mummified hand that was cut off during a duel.

One of three sites in England that house the National Collection of Arms and Armour.

These rose marble urinals are the most luxurious loos in Liverpool.

This Italian stadium makes liberal use of fascist statuary to evoke classical sporting arenas.

This prison on the Maltese island of Gozo is almost 500 years old, and they have the graffiti to prove it.

The fishing boats that moor in this small lagoon enter and leave through a tunnel to the sea.

Two geological phenomena in one precarious locale: a towering stone window, and a deep blue void.

This 700-year-old storehouse was a POW jail, aviation workshop, and Titanic memorial before becoming a brewpub.

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

A historic, reportedly haunted pub that provided inspiration for several famous adventure novels.

Large-scale contemporary artworks tower over fields and lurk in forests around a Jacobean manor house.