Places kelly33 Wants to Go

This one-time communal home of radical feminist activists was the first lesbian-related landmark on both the D.C. Inventory of Historic Sites and the National Register of Historic Places

This small museum is dedicated to telling the 4,000-year story of Palestinian history, culture, and resistance.

The unique traffic pattern named for an influential urban planner is also known as the Pedestrian Scramble.

The largest earthwork effigy in the world.

Once considered a marvel of engineering, this 107-mile canal played an integral role in building New York City.

An inclusive, climate-resilient playground honors the life of a young Boston Marathon bombing victim.

A quaint museum nestled in a former hub of Irish moss harvesting.

Beautiful steampunk ghosts of early Massachusetts.

This botanical garden outside Chicago boasts an array of more than 300 varieties of lilacs.

Home to a protest movement, a bombing, and a dramatic change in labor history.

First planned industrial community in the United States.

Once one of the world's great cities, Cahokia was a place of religious worship, trade and mass human sacrifice before being mysteriously abandoned.

Amid skyscrapers and traffic exists this unique aquatic ecosystem.

Cat art as far as the eye can see.

A floating cat sanctuary on an Amsterdam canal.

A semi-scholarly approach to sex.

The feral felines of Roosevelt Island have a small army of allies and an abandoned hospital all to themselves.

Just your average Marie Antoinette–themed speakeasy in an abandoned 19th-century subway tunnel.

This futuristic German spa allows visitors to float in a pool of salt water while zoning out to underwater techno.

19th century cemetery hidden in Brooklyn's Prospect Park.

One of the remaining markers of an era when Brooklyn and Flatbush were separate cities.

Deep under Manhattan is the largest construction project in city history. So far, the project has taken the lives of 23 workers, or "a man a mile."