Once a strategically imperative naval base, portions of this Bermuda dock complex now serve cruise ships.

This evocative New Jersey statue memoralizes the Polish victims of a Soviet massacre.

Hidden in plain sight on a pair of Manhattan subway tunnels are a pair of public instruments that sing to each other.

The last remnants of what was once one of the world's grandest hotels can now be found in a Manhattan subway station.

Hidden in one of New York's oldest subway stations is the final remnant of the site of the bizarre Shakespeare Riots.

On the Spree bank, discover one of the last reminders of a symbolic wall that divided, and was torn down by the people.

An 18th century wonder of the world, lost in WWII, re-created at the Catherine Palace.

The Guardian of Tallinn.

A subterranean house of worship carved right out of the bedrock.

This chimerical bridge/tunnel appears to dead end right into the sea.

The de facto symbol of Copenhagen is this bronze fairytale which cannot seem to keep its head for very long.

Copenhagen's celebrated theme park and gardens.

Home to three historic ships from the age of Vikings.

The alleged house of the Virgin Mary is tucked away in a park and nature preserve on Mt. Koressos in Turkey and is holy to both Catholics and Muslims alike.

The ancient latrines of the Greeks, in all their public glory.

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.

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

Construction of Barcelona's iconic (but controversial) church is expected to be completed in 2026—a century after the death of its architect.

The capital of the Cayman Islands is a center of offshore banking, but gets battered by blistering hurricanes.

Storms, funding, and in-fighting have kept this Bermuda church from ever being completed.

Rumored to be the famed pirate's lookout tower, this historic stone structure is now just watching for tourists.

A massive Montreal stadium that has seen nothing but trouble since its inception.

This lovely, if imposing, piece of Canadian gothic is possibly the most photographed hotel in the world.