The site of Paul Revere's historic two lantern warning.

Macabre headstones carved with winged skulls, dancing skeletons, and pithy reminders of impending death.

Spanish architects used seized Muslim gravestones to rebuild parts of the fortress.

This tiny tropical village was sick of anonymity so the locals made this sign, which actually changed the name of the town.

Shipwrecks, ruins, and turtles are all that remain on this haunting Caribbean ghost island.

The mouldering manses of wealthy colonials still pock the streets of a Curaçao neighborhood.

This vast masterpiece of Moroccan architecture spreads across 20 acres.

Deliberately hidden for centuries, the magnificent Saadian Tombs were eventually uncovered in 1917.

Fortune tellers, snake charmers, poets, and storytellers all gather on this historic square in Morocco.

Traditional 11th-century outdoor tannery.

Thousands of narrow alleyways in an ancient medieval city make up what's believed to be the world's largest car-free urban zone.

Mosaics, storks, and brothels—this ancient city has it all.

The sister plane of the C-123 shot down during the Iran-Contra Affair has found a new purpose in retirement.

It houses the remains of a 17th-century version of the Titanic.

A statue of the legendary Celtic warrior queen who fought the Roman invaders stands in one of the cities she once destroyed.

The London pub overlooks where the Mayflower was moored before setting sail for the New World.

The cedar tree in Highgate Cemetery earned its title by accident.

An alleyway plaque is all that remains of the independent Texas' envoy that forgot to pay their rent for over a century.

A serious museum dedicated to two German comedians.

A small square plaque marks a failed assassination attempt that could have changed history.

A series of three shiny letters mark the boundary of an old refuge for those being pursued by debt collectors.

Anonymously sculpted and donated, these sculptures made from poetry books and pages are sprinkled around the city.

Touching this 18th-century Scottish philosopher’s toe allegedly conjures good fortune.

This 16th-century house tells the city's history through old artifacts and quirky tales.