A cemetery with goat-horn bedecked gravestones.

A memorial to the thousands of Turkmen soldiers and civilians who died in a bloody 1881 battle.

A 14-foot monument marks the resting place of two of the town's earliest residents—and one unknown soldier.

The US Navy's only submarine museum is also home to the world's first nuclear submarine.

This war hero's old shop remembers the fine line between medicine and quackery during the Revolutionary War.

One of two lighted lanterns hung in the church belfry on the eve of the Revolutionary War to warn that the British were on their way.

The American Revolution was galvanized into serious action due to the tragic clash with British soldiers that occurred at this location.

The semi-reclaimed ruins of this canal were once part of an ambitious plan to reroute the mighty potomac.

Where pardoned turkeys once spent their all-too-brief final days.

The walls of America's oldest masonry fort famously "swallowed" cannonballs.

The oldest still-operating tavern in the United States was once owned by a pirate.

Morocco’s modern capital was once a haven for Barbary pirates, who went so far as to establish a republic of their own.

One of Antoni Gaudí's least-visited works, an homage to Catalan patrimony that mixes neo-Gothic with Modernista forms.

One of downtown Berlin's last reminders of its Communist past.

The last remnants of a massive medieval wall that once encompassed the city of Berlin.

Exact replica of the ancient monument, but much, much lighter.

One of the best-preserved Roman amphitheaters is still used today, but for less brutal events.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

An exploration of Malaysian heritage through the lens of traditional textiles.

Mysterious hillside with a continuously burning natural fire.

A gigantic collection of teeny, tiny books.

This mysterious but iconic tapered tower appears in many Azeri fairytales and legends.

A unique museum dedicated to culture and artistry of carpet weaving.

Hundreds of lucky felines haunt the ruins where Caesar was murdered.