Outstanding taxidermy dioramas showcase the grandeur of the continent's wildlife with spooky realism.

This exemplar of modernist architecture is meant to captivate and inspire students of the Cooper Union.

A popular European tradition makes its way to the states on one of America's most famous bridges.

Whisper secrets in a busy station only to be heard on the other side of this acoustic arch.

Elevated freight railway turned wildly successful urban park.

Dyed by iron oxide over centuries, these sandstone rocks rise thousands of feet into the sky.

Portlandia is the second-largest copper repoussé statue in the United States.

This open air cathedral invites all faiths to worship under the only roof big enough to fit them all: the sky.

Alexander Hamilton’s creation caused quite a bit of controversy.

The largest university building in the West is a gothic masterpiece containing dozens of theme rooms based on different countries.

There aren't too many operational funiculars around, but Pittsburgh has two!

The United States’s oldest funicular railway glides up and down a steep Pittsburgh street.

Frank Lloyd Wright's most iconic home dangles over a Pennsylvania waterfall.

The last masonry skyscraper ever built reveals a transitional moment in architectural history.

A 400-foot-tall tall map of Chicago makes this once-ignored building stand out.

This bronze sculpture on a former squash court marks the secret origins of the Atomic Age.

The unluckiest U-boat in the entire German fleet is now on display in a Chicago museum.

The twin towers in this Chicago fountain use 50 foot tall video screens to spit on people.

This $3 million model train takes you through Chicago, Seattle, and the thousands of miles in between.

Four glass boxes hover over 1,000 feet in the air to give visitors an unparalleled view of Chicago.

One of the world's earliest skyscrapers.

Home to drunken tower-climbing goats... seriously.

The hotel where Martin Luther King Jr. was shot is now a museum dedicated to his work.

This head-spinningly bizarre Depression-era art cave is wall-to-wall quartz and Jesus.