Construction of Barcelona’s iconic (but controversial) church was finally completed in 2026—a century after the death of its architect.

On the wall of this medieval walkway, a symbol of the Spanish Inquisition.

A centuries-old bar once frequented by Picasso, Hemingway, and Dalí.

Barça football fans might see the insignia hidden in a church window as a divine sign.

A vista of the city and sea from atop the little-known viewing deck on an unassuming Columbus statue.

Once the future of underwater combat, this old sub is now open for visitors to muck around in.

The most photographed house in Maine looks good enough to eat.

This is the largest cemetery in Ireland and the first cemetery museum in the world.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

Named for a doctor who made a breakthrough in London’s cholera epidemic, this 1800s pub was also the site of a queer “kiss-in.”

The Grand Lodge of Ireland is one of the oldest in the world, full of fantastical, elaborately themed rooms.

Once the longest bridge in Ireland, this rusting span sits abandoned and overrun by nature.

Memorial to the 137 lives lost on a ship fire, the whole hulk of which washed up on the Asbury Park shore.

Vacant Beaux-Arts buildings that serve as reminders of a beach town’s glory days.

The Cadillac Ranch for monster truck aficionados.

Beautiful Gothic-inspired lighthouse stands out among the run-of-the-mill striped fare on Bodies Island.

This pub built its reputation pouring post-shift pints for employees of the cemetery with which it shares a wall.

A precariously balanced rock perches on the edge of a cliff created tens of thousands of years ago by glacial erosion.

This colorful theme park dedicated the official fruit of Maine serves sweet, tasty treats.

This picturesque abandoned home is rumored to be a spite house.

A small Second Empire-style building is one of only seven remaining lighthouses on the Hudson River.

This historic iron-working village is now a ghost town so immaculate that it looks as though it was recently built.

The ruins of an important pilgrimage destination for worshippers of a Maya fertility goddess.

The ancient tomb acts as a calendar that keeps perfect time.