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

Steepest flood safety railway in the entire world.

The enormous 250-room Vanderbilt mansion conceals hidden doors and secret passageways.

A man-made island in scenic San Francisco Bay.

Not merely a museum – but a whirring powerhouse that offers a subterranean peek into the heart and soul of cable car operations.

The seawater playground of gilded-era San Francisco burned to the ground in 1966.

Equal parts record-breaking temple to consumerism and bizarre fun park, it's more than you think it is...

This circus town museum recognizes the outstanding clowns of history.

A bizarre house filled with an astounding array of collections.

A tribute to the twin ideals of religion and patriotism, built by a Catholic priest from rocks, glass, and innumerable found items.

Air Force Academy Chapel made of 100 identical tetrahedrons works to inspire those of all religions.

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.

Giant six-pack could provide one person a six-pack a day for 3,351 years.

A large circus museum with summer performances.

One of the last surviving C-97s sits in a field in front of a Wisconsin inn.

Britain's only herd of free-ranging reindeer.

A six-ton wedding present for the King of the Scots.

The unbelievably opulent home built for an infamous newspaperman.

Scotland's only funicular railway is also the United Kingdom's highest.

Overlooked by many, the two famous Scottish warriors guard the main gate of Edinburgh Castle.

The most loyal of little dogs, or a Victorian era publicity stunt?

The final resting place of soldiers' loyal canine companions.

Old-fashioned knowledge and modern engineering create the world's only rotating boatlift.