An enormous playhouse designed to look like 21 stacked Lego bricks, with another 25 million colorful Legos inside.

California's largest steel arch bridge.

An aluminum skeleton brings Chinese mythology to the French shore.

This exhibit is one of the largest and most well-preserved collections of Jurassic-era trackways in the United States.

More than 350 million years ago, western New York was covered in a vast sea. Today, you can dig up the remains of the plants and animals that lived there.

This brightly-colored chapel is a contemporary jewel standing in the middle of a La Morra vineyard.

A subterranean display of public art and architecture.

On high feast days, the entire blue-glass front of this modern church opens up to reveal the small wooden church inside.

This massive subterranean fissure is known as the "underground Grand Canyon."

The oldest restaurant in Portland serves fiery coffee cocktails and an astounding amount of turkey.

This public art piece proves that in Portland even reporting the weather is a thing of whimsy.

A sculpture of a salmon swimming through a brick building.

One of the most comprehensive collections of historic Native American culture in the country reframes artifacts as artwork.

The highest pedestrian bridge in Singapore looks like a series of undulating waves rising between two public parks.

This stunning Connecticut mansion is actually just a one-room-deep hoax.

This statue was given to France by the United States to commemorate the centennial of the French Revolution.

Long buried under the 20th-century landscape, this lift lock of the Alexandria Canal is the lone remnant of an ambitious early American transportation project.

An 18-mile-long tunnel for sewage waste will soon wind within the bowels of Washington, D.C.

Largest collection of mounted dinosaur specimens in the world.

An absolutely beautiful 200-foot stained glass installation traces the evolution of knowledge.

Sandstone rock formations that look like they belong on the cover of a progressive rock album.

Dig for your own trilobites in this goldmine of invertebrates.

Inside this striking glass building, visitors can see thousands of dinosaur fossils in the positions that nature deposited them more than 150 million years ago.

A world of craftwork elegantly curated in a historic brick warehouse.