The first Catholic church in Singapore is a Neo-Gothic colossus with a rich architectural history.

Terrapins of all colors and shapes are quick to bring fascination (and possibly long life) at this museum.

A cavernous three-story, 43,800-square-foot basement that was forgotten about for 60 years.

These free-roaming horses were once destined to disappear from the land.

This Arizona observatory is famous for investigations into Martian life, and as the place humans first spotted Pluto.

A self-built castle made by a mysterious man.

A 30-acre garden inspired by the principles of modern physics.

Banksy gives themself artistic license with this piece of London street art.

This ornate Victorian marketplace was the setting for Diagon Alley and the Leaky Cauldron in the Harry Potter films.

There are plenty of wonderful panoramic vistas in Edinburgh, but not many are hidden smack in the middle of the Old Town.

The highest peak in the United Kingdom has a history of physics, specters, and a pilgrimage of strange objects.

This dramatic landscape hidden on the Isle of Skye looks as though you've stepped into the magical realm.

These fantastically named natural pools look like something out of a Scottish myth.

The preamble to the U.S. Constitution written entirely from vanity license plates hangs in the Smithsonian museum.

The monument's pointy aluminum tip has been melted down by repeated lightning strikes.

This leafy estate is worth $18 million and is so grand it has two mailing addresses.

A three-story tower of books about Abraham Lincoln is one of the more unusual monuments to the president.

People escaping slavery may have hidden inside a corpse vault.

Warsaw's fantastically preserved gasworks...almost.

A historical convent known for taking in bad luck babies left on its doorstep is now an upscale shopping center.

Hike the unusual hoodoos and rock formations that form this little-known natural wonder.

This old selenite mine is dotted with tiny crystals that make it shimmer like it's covered in glitter.

The eroded core of an ancient volcano is now accessible by a short hike.

All of the 20 occupied houses in this mostly abandoned town feature some curious display of junk art.