The remnants of a strange stilted building on rails can still be seen at low tide.

The medieval-looking hammer beam teak roof may be a Victorian vanity, but it's still absolutely magnificent.

These wire animal sculptures commemorate the exotic inhabitants that once called the Tower of London home.

WWII artifacts, including the building itself.

The geoglyph once sported a glass bottle eye.

Hidden in the courtyard of the Victoria and Albert Museum is a little-known tribute to two celebrity pooches.

This hill and tower are steeped in legend, from King Arthur to the Holy Grail.

The bones of two medieval royal lions were discovered at the historic fortress.

A statue of the original Pearly King is hidden in a church's crypt.

This bewitching Babylonian goddess haunts a hallway of the British Museum.

This memorial to World War II's fallen airmen shows us the movements of the stars that once guided them.

A spectacular disused railway viaduct in a beautiful countryside nature reserve.

An amazing example of early-20th-century architecture, this church features marble transported from Utah.

This little-known Revolutionary War fort is supposedly haunted by the ghosts of its past.

The oldest surviving botanic garden in the United States.

The body of St. John Neumann and his collection of hundreds of relics, on display in a Philly church.

A museum dedicated to the strange and extravagant costumes and memorabilia of the mummers, a tradition older than Philadelphia itself.

An Irish Memorial commemorating those who perished due to potato blight.

This charming colonial alleyway is one of the oldest continuously used residential streets in the U.S.

These medicine cabinet staples are part of the museum's collection of everyday objects.

Yo, Adrian!

The world's third-largest crystal sphere has sat in the Penn Museum since 1927 with the exception of one outlandish theft.

Dr Barnes' $25 billion private collection of art and arboretum.

Century-old shop, specializing in Occult products.