The world's oldest bookshop still in operation.

Sip cherry liqueur at a bar dating back to 1840.

Legacy of the earthquake that nearly wiped Lisbon off the face of the Earth.

The second-highest train station in Europe.

Part of this hotel resides in Switzerland, the other in France, and the border splits the honeymoon suite.

Every year, a sparkling cave is sculpted in the icy heart of a glacier.

A perfectly crafted Pre-Columbian artifact dating back to 600 CE.

Einstein's old locker at ETH is now a tiny museum

"the sweltering inhabitants of Charleston and New Orleans, of Madras and Bombay and Calcutta, drink at my well . . . The pure Walden water is mingled with the sacred water of the Ganges."

One of the now-less-hidden floral gems of the "Emerald Necklace."

This imperial marble stele was given to Harvard by Chinese alumni in the 1930s.

This plaque is dedicated to one-half of the Magliozzi brothers and their hit radio show, 'Car Talk.'

Why walk on this historical site when you can zoom down instead?

Two thousand artifacts from around the world collected by one woman who loved to travel.

The oldest bibliophilia club in America, with exhibitions on historic books and graphic arts.

Three prestigious academic collections come together to create a world-class natural history museum.

Impossibly life-like natural history models created out of glass by a father and son.

One of the most historical literary characters continues to stroll his hometown.

A sculpture of a courtesan towers above Lake Constance, recalling a church scandal.

This unassuming stone commemorates a condiment factory gone up in smoke.

Mysterious 500-year-old tapestries depict a unicorn hunt.

This hidden oasis features a stunning view of the Hudson River and the Palisades from a castle-like museum.

The mosaic Star of David at the front of this store hints that it's no ordinary Italian grocer.

This historic hotel invented the chocolate brownie.