The oldest operational cathedral in the U.S. has one shell of a way of projecting speakers' voices.

The bombed out remains of the old church were kept intact next to the new one, as a reminder of the futility of war.

Be on the lookout for the symbolic insect all over the city.

An enormous steel waterfall is a nod to the substance that shaped Britain's Steel City.

The Tudor-style cottage in the middle of the square is not quite what it seems.

Modern commuters still pass through this 2,000-year-old Roman archway.

An Old West film set seen in countless TV shows and movies is open for the public to explore.

The beautiful, fruit-covered facade hints at this building's former life.

This innovative steam machine was no doubt the most famous of the pioneer locomotives.

A spooky juxtaposition of caves and graves gives this legend-filled cemetery a particularly haunting vibe.

19th-century scientists would make the pilgrimage here to verify the precision of their measuring sticks.

Six ravens are kept captive (but well-fed) at the Tower of London to prevent the fall of the Crown.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

When it came to designing his own small office building, the eccentric architect wasn't afraid to show the world what he could do.

On October 17, 1814, a 15-ft. wave of beer ran rampant through the streets of London.

These four islands right offshore have waterfalls, colorful lights, fancy buildings, and a secret purpose.

One fisherman has used his love of pebbles and shore to create a crazy garden of rocky art.

Decrepit Victorian public lift is a white-knuckle ride.

The marker offers a rare chance to be in four U.S. states at once, though there's some controversy over its geographic accuracy.

The ancestral home of beloved English poet Lord Byron has a bizarre history.

The storied English village that pretended to be insane inspired NYC's nickname and the fictional namesake in the DC Comics universe.

An abandoned 1920s-era stretch of cabins now overshadowed by the 66 Motel.

The Metropolitan Police refurbished the blue box (perhaps not coincidentally) the same year "Doctor Who" returned to TV screens.

This Victorian marvel of engineering and artistic prowess is nicknamed the "Cathedral of Steam."