Inspired by a piece of concrete, these three pyramid-shaped buildings have been beloved Indianapolis landmarks for over 50 years.

It’s all about the Benjamins at this Atlanta museum with interactive exhibits.

One of corporate America's best-kept secrets is also one of the most publicly displayed.

The Battle of Atlanta in 360 degrees, featuring a corpse that bears a striking resemblance to Clark Gable.

A grassroots community effort in the 1970s led to the creation of this beautiful garden full of delightfully whimsical exhibits.

At these downtown crossings, pedestrian lights show axe-wielding Vikings instead of the usual walking figures.

This abandoned five-star hotel is now a five-star urban exploration destination.

Legend has it the lovelorn tears of a princess and a shepherd boy formed the blue and green twin lakes in the Azores archipelago.

A perfectly circular lake is formed by the crater of an ancient underwater volcano.

Europe's oldest still-operational tea farm also boasts a spectacular view.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

One of the largest free-standing structures ever built, this dirigible hangar is now simply a giant skeleton.

The graffiti-covered remnants of a former triangulation station are balanced precariously on this California peak.

Concrete strongholds stand guard over the Golden Gate.

The last remaining relic of San Francisco's glittering 1915 Panama Pacific Exposition.

There is no trying to fall in love with this Star Wars fountain, you just do or do not.

Get lost in this haunting fairytale art walk through a man-made eucalyptus grove.

A monument first built to honor Confederate soldiers now honors their Union opponents.

A Gothic-inspired fish market is Gothenburg's best place to find loaves and fishes.

Swedish skyscraper with a 90° twist.

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

A spiralling hourglass-shaped tower rises from the forests in Denmark.

The world's first combination ski slope and power plant.

The original home of the Lego has a huge amusement park dedicated to the iconic plastic toy.