A mineral spring that became all the rage in 17th-century England.

The recreated ruins of a house designed to memorialize a World War I shelling on the town.

These carved, weathered stones once gave mail carriers and pub goers a leg up.

This historic castle was already in ruins by the 13th century.

This tiny traditional smokehouse is the only one left in this historic fishing port.

The curious and tiny collection contains some very odd objects.

Legend says squeezing into this slender stone seat will make your wish come true.

Order bagels and lox from an iconic Jewish delicatessen with nearly a century of history behind it.

A hidden church in a hidden courtyard tells the story of the Miracle of Amsterdam.

A uniquely preserved neo-Gothic church that is now home to a collection of art and woodcarvings.

This Netherlands museum holds a gloriously mechanical collection of ornate musical automata.

Some 80,000 Delft Blue tiles line the inside of this Amsterdam walkway.

A sacred lake composed of over 300 separate pools of highly concentrated minerals.

Unlike many reclaimed, abandoned mines, this Canadian cave system is still just a dangerous maze.

More than a million titles fill the labyrinthine shelves of this prestigious private library.

The old church, buried by the 1784 Mount Vesuvius eruption, is a remarkably well-preserved place where people now pray for the souls of the dead.

This small train ride offers stellar views of the Grand Garden Palace.

This Dresden church was purposely rebuilt Protestant after being demolished in World War II.

The largest treasure hoard in Europe is contained in a castle that was bombed out during World War II.

The library houses an incredible collection of some of the world's most impressive books and manuscripts.

Visit the grave of America's most prominent paranormal investigators and self-proclaimed demonologists.

The John Snow Memorial marks the epicenter of London's 1854 cholera epidemic.

The remains of Crystal Palace Great Exhibition of 1851.

Taxidermied cartoon heads, unseen illustrations, and famous characters all reside in this small gallery space.