A free, public museum dedicated to the fascinating science of sight.

A peculiar mansion built by the troubled heir to the Winchester Rifle Company fortune.

The oldest continuously operating church in California.

Life in this isolated, hilltop lighthouse was lonely, but it sure was lovely.

This ancient fortress in Iran was once the oldest and largest treasury in the world.

One of the world's largest salt caves is filled with fragile salt sculptures, salt rivers, and huge salt megadomes.

This ruined fortress was the stronghold for a persecuted medieval leader and his infamous Assassins.

A mesmerizing reservoir nestled at the heart of a pre-Islamic Yemeni village.

Essence of hound's tongue and tincture of bloodroot are just the tip of the herbalist iceberg at this beautiful, impressively-stocked apothecary.

Step back into the glory days of Florida's nascent tourism industry at this Gilded Age palace.

Overlooked amid the tourist bustle of Florence, this museum is dedicated to the craft of stone inlay.

A large grotto built in the 16th century amidst Florence's famous Boboli gardens.

The largest and most famous wax anatomical collection anywhere in the world.

A palatial sculpture park was built illegally and in secret by a self-taught artist over 36 years.

This complex of vertically-excavated Buddhist, Jain, and Hindu monolithic temples in India's Maharashtra providence illustrates a spirit of tolerance characteristic of ancient India.

More than half of this Indian palace is drowned but it looks all the more spectacular for it.

Thousands of exquisitely carved stone water storage wells, hundreds of stone steps fill this exquisite medieval stepwell.

The 953 windows undoubtedly make this the world's most beautiful screened porch.

The tale of a strong-willed woman who stood her ground when the commercial world came rumbling in.

A sculpture outside London's oldest cathedral honors the Mohegan chief who died while petitioning the king.

The "shampooer of kings" who opened London's first curry cafe was a celebrity in the 19th century, but is all but forgotten now.

The London statue that imitates passersby.

The lab where the scientist made his groundbreaking discoveries is preserved on the basement floor of the Faraday Museum.

The watery entrance for condemned prisoners heading to the Tower of London is still visible along the Thames.