Once an opulent Art Nouveau hotspot, the Constanța Casino is one of Romania's most beautiful abandoned buildings.

Climb inside an iron crystal magnified 165 billion times its normal size.

Ottoman-era houses lovingly preserved.

This incredible stone temple is a monument to death, victory, and fantasy architecture.

A battle between nature and architecture in the Cambodian jungle.

Hoax, mistake, or evidence of dinosaurs in human times?

An ancient church on a tiny island covered in stone bible stories has controversially been turned into a museum.

An experimental, automotive replica of Stonehenge.

Medieval museum built over Roman baths that features famous tapestries of a lady and a unicorn.

The 3.8 billion-year-old rock proves that tectonic plates may have been shifting longer than we thought.

Earth's greatest purely vertical drop at 4,101 feet.

A lake in the middle of the tundra of Quebec is said to be the purest freshwater lake on Earth.

Three columns of volcanic rock shoot out of the ocean.

A formerly glacier-tipped volcano that inspired none other than Jules Verne.

Walk in the footsteps of the gods and straddle two tectonic plates.

This natural Icelandic fissure allows divers to swim right between two volatile tectonic plates.

The Dalai Lama named this New Zealand landscape the "Spiritual Center of the Universe."

The world's only complete colossal squid specimen is on display at the Te Papa Museum.

What's left of the ruins of the 1893 Columbian Exhibition, or World's Fair, also known as the White City.

A pop-culture attraction outside of Dyersville, Iowa, hits a home run.

This elaborate Hindu temple is located in a Chicago suburb, but looks like it was transported directly from India.

This memorial commemorating fallen Swiss Guards of the French Revolution has been called the saddest stone in the world.

Roman ruins, natural methane fires and a lovely beach.

A bizarre roadside attraction and the first instance of miniature golf in the world.