A former waterfront market is now in the center of town due to some interesting Boston engineering.

The site where Charles Dickens gave his first public reading of "A Christmas Carol" in the US.

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

Stockholm's deepest subway station is also a stunning ecological wonder.

Stockholm's decidedly unique public transit system has doubled as the world's longest art gallery for decades.

There is one corporation registered for every three square feet of space in this inconspicuous office building.

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

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

A cathedral resurrected from the ashes of one of Europe's greatest urban fires.

A small island dotted with old, historic Finnish buildings.

A 246-foot-high revolving restaurant rises unexpectedly from a forested Finnish hilltop.

An abstract monument to a symphonic composer.

This insurance company building reminds customers that witches, bears, and gnomes are out there, best be insured.

This irregularly shaped sea fortress has defended not one but three different sovereign states.

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

The blinking light atop the iconic landmark has been sending secret messages for decades.

This quirky UFO-shaped curiosity is often mistaken for the airport’s control tower.

Outposts of this restaurant chain were shaped like jaunty chapeaus.

After starting as a whimsical tourist attraction that eventually found its way to ruin, these renovated canals offer a lush and exotic locale on the Pacific Coast.

Resting place of Hollywood's immortals is also site of summer film screenings.

America's most famous piece of self-built architecture.

High on a hill overlooking Los Angeles lives a world famous, high power conical Tesla Coil.

The only royal palace on U.S. soil has been a territorial capitol, a military headquarters, and a prison for a queen.

Race through the maze, get your name on the sign.