This group of small islands on Lake Nicaragua formed after an eruption of the Mombacho volcano.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

The only surviving building of historic West Boylston, which was flooded to create the Wachusett Reservoir.

Everyone from Alan Ginsberg to The Rolling Stones has stopped by this classic dive bar.

This beach pool offers a spectacle of crashing waves, blue hues, and a historical lighthouse.

The crumbling remnants of this 19th-century quarantine hospital hint at the touristy island's darker past.

Kings Cross Station pays tribute to its role in Britain's best-selling book series.

Richard III supposedly disposed of his nephews' bodies here in an effort to seal his claim to the throne.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

A six-ton wedding present for the King of the Scots.

A labyrinthine network of chambers with a storied past hides below Edinburgh's South Bridge.

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

"Respectful to the dead, safe and sanitary to the living, dedicated to the Genius of Memory..."

Displaced highlanders would take shelter from the wet Scottish climate under the large walled bridge at Glasgow Central Station.

A scattered trail of street art adds a pop of color to the city's stark structures.

Central America's deepest lake is actually a volcanic caldera, surrounded by three volcanoes.

A crumbling cathedral condemned by an earthquake.

On a side street near the interstate is the building where the famous anarchist once owned an ice cream parlor.

An acoustic anomaly with a mysterious cause sits in the heart of Tulsa.

The fifth tallest statue in the United States is a shirtless monument to the oil worker.

The collection is housed in an exquisite mansion that makes you feel like you've been transported to an Italian villa.

This Niagara Falls tourist trap is a world bright with neon and curiosities that will inspire love, hate, or a mixture of both.

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

The biggest museum dedicated to insects in North America, one of the largest in the world.