The first religious structure on the island of Luzon and a survivor of World War II.

Legend holds that a tortoise turned itself into this island to save two shipwrecked sailors.

These mosaics were created more than half a millennium ago and feature various animals.

One of Antoni Gaudí’s earliest buildings, built between 1886 and 1890 for the industrialist Eusebi Güell.

Songwriter Leon Russell transformed this church into a recording studio used by many legendary musicians.

A wonderful collection of all things Oz is nestled in the heart of Kansas.

A Kansas nature preserve protecting the plants and animals that once stretched across central North America.

The farm where one of America's greatest leaders was raised is now a well-appointed landmark.

Part of a worldwide art project, this mysterious semicircle of concrete shapes holds the pieces of a larger story.

Home to a collection of artifacts and specimens from one of the world's preeminent geologists

Symbolic attempt to overcome the issues of life.

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

The largest mural in the world painted by a single artist.

The oldest house in Lindsborg, Kansas, includes some fascinating inscriptions.

Curious rock formations in a tiny Kansas state park.

This historic early-20th-century building still boasts some of its original features.

A unique blue and yellow phone booth in America's "Little Sweden."

This mid-19th-century dugout was once home to a Swedish family as they erected their homestead.

Marking the spot where a conquistador gave up his search for the fabled Seven Cities of Gold.

The only fully-realized skyscraper built by the famed American architect, Frank Lloyd Wright.

A whimsical tower with a spiral staircase, inspired by the Space Age and the Möbius strip.

An oil baron's wild paradise and the winner of an ill-fated air race.

A museum packed with instruments, lyrics, and other mementos of the American folk icon.

A half-size replica of the World Trade Center towers above Tulsa.