The former Nazi concentration camp stands as a museum to remember this dark chapter in European history.

The oldest of only three existing statues of the great novelist stands in a city he did not care for.

A walk through the historic city center, under the streets of Seattle.

Scale replica of China's ancient terracotta tomb warriors and Forbidden City are the side project of an eccentric millionaire.

From Austrians to Nazis to Soviets, this historic Budapest fortress has a history as complex as the city itself.

Macabre astrological automaton clock dating to the late 1400s.

This crumbling medieval basilica once attracted pilgrims by the thousands to collect a miraculous dust that formed above the saint's tomb.

St. Mary's features one of the most spectacularly decorated cathedral interiors in all of Europe.

Elvis's own personal tropical hideaway.

Three hundred years of preserved Spanish colonial history in San Antonio.

One small town in the Pacific Northwest transformed itself into a Bavarian-themed tourist destination.

The longest continuous lava tube in the continental U.S. offers 2.5 miles of dark explorations for the adventurous.

The highest point in Washington state is a volcano covered in glaciers.

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

Haunting and beautiful trees, doomed to die.

255 feet of suds, scrubbers, and blow dryers.

The upstairs reading room is packed with millions of rare books, literary manuscripts, and historical treasures.

The LSU mascot lived on the college campus in one of the most impressive tiger habitats in the country.

Thomas Jefferson's estate is home to hundreds of varieties of historic fruits and vegetables.

A modernist landscape of water and sci-fi concrete.

Seven flags adorn this Texas museum, one for each of the powers that have ruled the area.