Places Polytropa Wants to Go

One of seven Jewish catacombs in Rome and one of only two open to the public.

Museum dedicated to literary greats of the Romantic Period is also the home in which Keats met his untimely end.

Inside this McDonald's you can dine on your Big Mac and fries next to a 2,500-year-old Roman wall.

The engineering wonder and pleasure dome of a much-maligned emperor still holds undiscovered secrets.

The final resting place of the poets Shelley and Keats.

The underground sanctuary of a mysterious ancient cult.

This small shop walked so America could run on Dunkin'.

A New England ghost town features a trail of boulders etched with intriguing life lessons.

The most visited, and possibly most controversial, museum in Germany.

The 1920s child prodigy author was last seen here at her Brookline home before vanishing at age 25.

This evocatively named natural crevasse was created by a torrent of water that smashed right through a granite deposit.

It was an experiment to prove that glacial boulders and rocks can be used in constructions and dwelling.

This beach-side arcade is believed to be the oldest penny arcade in America.

From economic backbone of a community to deadly diving hole, these former stone quarries are now a park for rock climbers and graffiti artists.

This delicate museum is devoted to the art and industry that once supported Cape Cod's oldest town.

Sacks of potatoes, made of cast stone, mark where the iconic potato sheds once stood along the river.

An 80-year-old house built out of newspapers.

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

These whimsical works of art tell the story of the city's past and present.

"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 last remaining World War II Victory Gardens in the U.S. is quietly growing across from Fenway Park.

The thousands of shades on display — some toxic, others impossibly rare — are a library of more than just color.

35,000 grape hyacinths flow like water down a garden hill.

This former Masonic hall has been turned into an art project that uses even more metaphysical iconography.