Thousands of coffin-like pillars make up this controversial Holocaust memorial.

The works of poetry's biggest names grace the walls of the city of Leiden, all carefully painted by hand.

This city square is home to Amsterdam's oldest church and a statue honoring Dutch sex workers.

The history and future of cannabis.

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

This gem is often wrongly overshadowed by the larger, newer Metropolis church in Athens.

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.

Where the lovelorn find a home for their sentimental keepsakes.

Napoleon's childhood home is now open for people to explore the beginnings of France's short general.

The bones of some 7,000 soldiers killed in the historic Battle of Solferino are stored here.

Pilgrimage site for star-crossed lovers.

Fortified medieval tower house with lovely roof garden.

These medieval skyscrapers dominate the skyline of this small Tuscan town.

The only "Egyptian" pyramid in Europe and the legendary tomb of Remus.

Where commuters walk through remnants of an ancient Greek necropolis.

This ancient Greek place of assembly and marketplace is being revealed layer by layer below the modern Athens cityscape.

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.

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

A marvel of Byzantine engineering under the streets of Istanbul.

The oldest church in the Estonian capital is home to over 100 fantastical cemetery coats-of-arms.

This micro-nation may be some sort of prank, but its constitution sure seems official.

The Frank Zappa fan club erected this monument to their prog-rock hero to mark a new era of post-Soviet Lithuania.

Flamboyant architecture from the turn of 20th century.