The site of the famous Nazi book burning campaign of 1933 remembers its "Night of Shame".

The most visited, and possibly most controversial, museum in Germany.

The eclectic home of a leading Turkish architect is a gorgeous piece of eye candy.

No one is sure if the world's fourth-largest diamond had been found in a rubbish heap or was pawned by Napoleon's mom.

1513 Turkish world map, full of European state secrets and snarky commentary.

A section of the long chain that blocked enemy ships from entering Constantinople.

Ancient serpentine sacrifice holder that has stood the test of time.

This remarkably well-preserved Egyptian plinth is pretty well traveled for a giant piece of stone.

A fountain standing as a testament to a doomed alliance.

Five sultans and their families rest in eternal splendor, teeming with overlooked beauty and drama.

Legend says if you stick your thumb in the hole and it gets wet your wish will be granted.

A marvel of Byzantine engineering under the streets of Istanbul.

Though considered an eyesore by some, this boxy Brutalist high-rise plays a significant role in Sydney's past.

A collaboration of art and ornithology mourns the calls of Sydney's lost birds.

Arcade chock-full of old timey, whimsical, hand-cranked automata and peepshows.

The colony of South Australia was proclaimed on a hot December day under a distinctively arched gum tree.

Bronze statues honor the brave explorers who passed through this Antarctic gateway.

This giant dish located in a sheep paddock was the primary receiver of Apollo 11 TV transmissions.

The gigantic preserved heart of a champion racehorse.

Children's playground hidden under a big pink and blue cap.

An incredible garden taking over the interior of a massive sinkhole.

The decommissioned submarine is now the symbol of a small, inland Australian town.

These naturally occurring but rare geological formations are each about the size of a small house.

Popular tourist destination now stands as a memorial to Sam the koala.