Wild seas have created two spectacular formations just a stone's throw away from each other.

A 1,100-ton train fell through the floor in 1953. Workers got it patched up in just 72 hours.

Created as a coal reserve, it is today a natural park with stunning wildflowers, ancient marine fossils, and remnants of a 19th century mine.

This historic Melbourne bullet factory is fully encased in a massive glass and steel cone.

There’s a hidden military meme engraved on the World War II Memorial.

Three connected pink triangles memorialize persecuted gays and lesbians throughout history.

Visible from both land and sea.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

D.C. once had its own tiny rival to the New York Stock Exchange.

One of the most enjoyable bits of history at Coney Island and “the most romantic ride in the world.”

America's oldest Eastern European synagogue provided the immigrants of crowded Lower East Side tenements a space of sanctuary.

Bloodstains can still be seen in this medieval church where two medics saved lives on D-Day.

Two thousand feline artifacts fill Malaysia's "Cat City."

Holy Hindu shrine in an enormous, monkey-filled limestone cavern.

The seat of Buffalo government is a gorgeous Art Deco palace.

All that remains of this small town is its mass grave and a myth of a voodoo priestess who predicted its demise.

A monument to a working class martyr.

The holes in the world's longest golf course are in a series of different towns.

Monument that stands 40 feet and weighs 1,000 pounds.

Soaring over 6,000 feet in the Bavarian Alps, this beer garden was once Hitler's 50th birthday present.

The prototype for all Nazi concentration camps.

Daily jousts and dancing barrel makers in Munich's mechanical clock.

This collection of over 50 murals celebrates Brussels' rich history as the self-proclaimed home of the "comic strip."

A horde of stray cats rule in this secluded Parisian cemetery under a bridge.